APA引文

Willoughby, W. W. (1925). Opium as an international problem, the Geneva conferences. John Hopkins Press.

Chicago Style (17th ed.) Citation

Willoughby, Westel Woodbury. Opium as an International Problem, the Geneva Conferences. Baltimore: John Hopkins Press, 1925.

MLA引文

Willoughby, Westel Woodbury. Opium as an International Problem, the Geneva Conferences. John Hopkins Press, 1925.

警告：這些引文格式不一定是100％准確.