APA استشهاد

Geikie, S. A. (1903). Text Book of Geology. McMillan.

استشهاد بنمط شيكاغو

Geikie, Sir Archibald. Text Book of Geology. London: McMillan, 1903.

MLA استشهاد

Geikie, Sir Archibald. Text Book of Geology. McMillan, 1903.