APA引文

William Benton. (1968). The World Book Encyclopedia U-V, Volume 19. USA.

Trích dẫn kiểu Chicago

William Benton. The World Book Encyclopedia U-V, Volume 19. USA, 1968.

MLA引文

William Benton. The World Book Encyclopedia U-V, Volume 19. USA, 1968.

警告：這些引文格式不一定是100％准確.