APA引文

Cavalli-Sforza, L. L. (1974). Letter: Controversial issues in human population genetics.

Citação norma Chicago

Cavalli-Sforza, L L. Letter: Controversial Issues in Human Population Genetics. 1974.

MLA引文

Cavalli-Sforza, L L. Letter: Controversial Issues in Human Population Genetics. 1974.

警告：這些引文格式不一定是100％准確.