APA استشهاد

Darwin, C. (1952). The Origin of Species By Means of Natural Selection The Descent of Man and Selection in Relation to Sex. William Benton.

استشهاد بنمط شيكاغو

Darwin, Charles. The Origin of Species By Means of Natural Selection The Descent of Man and Selection in Relation to Sex. Chicago: William Benton, 1952.

MLA استشهاد

Darwin, Charles. The Origin of Species By Means of Natural Selection The Descent of Man and Selection in Relation to Sex. William Benton, 1952.