APA (7th ed.) Citation

Killops, S. D., & Killops, V. J. (1993). An introduction to organic geochemistry. Longman Scientific & Technical.

Chicago Style (17th ed.) Citation

Killops, S. D., and V. J. Killops. An Introduction to Organic Geochemistry. Harlow: Longman Scientific & Technical, 1993.

MLA (9th ed.) Citation

Killops, S. D., and V. J. Killops. An Introduction to Organic Geochemistry. Longman Scientific & Technical, 1993.