APA引文

Sinoff, C. L. (1989). Why are some specialties so unpopular?

Citação norma Chicago

Sinoff, Clive L. Why Are Some Specialties so Unpopular? 1989.

MLA引文

Sinoff, Clive L. Why Are Some Specialties so Unpopular? 1989.

警告：這些引文格式不一定是100％准確.