APA استشهاد

Darwin, C. (1964). Monograph on the sub-class cirripedia.

استشهاد بنمط شيكاغو

Darwin, Charles. Monograph on the Sub-class Cirripedia. New York, 1964.

MLA استشهاد

Darwin, Charles. Monograph on the Sub-class Cirripedia. 1964.