APA استشهاد

Beiser, A. (1975). Schaum's outline of theory and problems of earth sciences. McGraw-Hill.

استشهاد بنمط شيكاغو

Beiser, Arthur. Schaum's Outline of Theory and Problems of Earth Sciences. New York: McGraw-Hill, 1975.

MLA استشهاد

Beiser, Arthur. Schaum's Outline of Theory and Problems of Earth Sciences. McGraw-Hill, 1975.