Trích dẫn APA

(2007). Celebrate: Holidays in the U.S.A. American: Office of English language programs.

Trích dẫn kiểu Chicago

Celebrate: Holidays in the U.S.A. American: Office of English language programs, 2007.

MLA Trích dẫn

Celebrate: Holidays in the U.S.A. American: Office of English language programs, 2007.

Warning: These citations may not always be 100% accurate.