APA (7 ম সংস্করণ) উদ্ধৃতি

Leffingwell, A. (1914). An ethical problem: Or, Sidelights upon scientific experimentation on man and animals. G. Bell and Sons; C.P. Farrell.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Leffingwell, Albert. An Ethical Problem: Or, Sidelights upon Scientific Experimentation on Man and Animals. London, New York: G. Bell and Sons; C.P. Farrell, 1914.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Leffingwell, Albert. An Ethical Problem: Or, Sidelights upon Scientific Experimentation on Man and Animals. G. Bell and Sons; C.P. Farrell, 1914.