APA استشهاد

Geikie, J. (1940). Structural and Filed Geology. Oliver&Boyd.

استشهاد بنمط شيكاغو

Geikie, James. Structural and Filed Geology. London: Oliver&Boyd, 1940.

MLA استشهاد

Geikie, James. Structural and Filed Geology. Oliver&Boyd, 1940.