APA (7th ed.) Citation

O'Keefe, J. (1976). Tektites and their origin. Elsevier.

Chicago Style (17th ed.) Citation

O'Keefe, John. Tektites and Their Origin. Amsterdam [u.a.]: Elsevier, 1976.

MLA (9th ed.) Citation

O'Keefe, John. Tektites and Their Origin. Elsevier, 1976.

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