Either choice is correct. Italics are preferred for titles of books and magazines. If this is not possible, underlining is acceptable.
In addition to book and magazine titles, use italics for titles of newspapers, movies, plays, television series, and other individually produced or published works:
My subscription to Newsweek expired last month; I think I'll replace it with U.S. News and World Report.The movie Gone with the Wind continues to be one of my all-time favorites.Is NOVA currently being telecast over the Public Broadcasting System?The financial analysis was presented in an article that appeared recently in The Wall Street Journal.
In the publishing sector, some typed documents will show titles of magazines, books, and newspapers in all capital letters, rather than underlined:
CREATION REVISITEDNATIONAL GEOGRAPHICTHE NEW YORK TIMESOLIVER TWIST
No. Sections of published works-chapters, magazine articles, acts within a play, editorials, etc.-are placed within quotation marks rather than italicized:
Chapter 6 of A Thousand Days, entitled "Prelude to the New Frontier," presents an analysis of the economic and political issues leading to President Kennedy's election.Last month's National Geographic featured an article entitled "New Hope for China's Giant Pandas."The editorial "Keep Light Rail on Track," which appeared in this morning's edition of the Tribune, presents a solid case in support of the proposed rapid-transit program.
Yes, if they have not yet been absorbed into the English language:
The pororoca, a huge tidal bore, forces its way inland up the Amazon at yearly intervals.Slums in Argentina are called villas miserias.The couturier who designed my dress was from Paris.
When the foreign words or phrases are very common, they are not italicized:
rendezvous per annum vice versa
Use italics for the names of ships, spacecraft, and aircraft:
C.S.S. Alabama Friendship 4 Enola Gay
However, do not italicize the abbreviations or numerals associated with the names.
Names of genera, subgenera, species, and subspecies are italicized:
the species Dryandra and Calytrix enabbensis the genera Isotes and Ambrosiz
Names of higher groups like phyla, classes, orders, families, and tribes are not italicized:
the family Canidae the class Mammalia
Italicize words that are used as words:
When the word lumber is used, it means wood that has been milled from logs to various thicknesses and lengths.The geologist who prepared the report on the Entron basin inadvertantly referred to the anomolous formations as anonymous formations.
Use italics to emphasize words and phrases. See EMPHASIS TECHNIQUES.