APA引文

HelmKamp, G. (1964). Selected expenments in organic chemistry. San Franrcisco:.

Trích dẫn kiểu Chicago

HelmKamp, G.K. Selected Expenments in Organic Chemistry. San Franrcisco:, 1964.

MLA引文

HelmKamp, G.K. Selected Expenments in Organic Chemistry. San Franrcisco:, 1964.

警告：這些引文格式不一定是100％准確.