APA (7th ed.) Citation

O'Keefe, J. A. (1976). Tektites and their origin. Elsevier Scientific Pub. Co..

Chicago Style (17th ed.) Citation

O'Keefe, John Aloysius. Tektites and Their Origin. Amsterdam ; New York: Elsevier Scientific Pub. Co., 1976.

MLA (9th ed.) Citation

O'Keefe, John Aloysius. Tektites and Their Origin. Elsevier Scientific Pub. Co., 1976.

Warning: These citations may not always be 100% accurate.