APA (7th ed.) Citation

Ridley, M., Saifuddin, A. F., & Soegiarto. (1991). Masalah-masalah evolusi. UI Press.

Chicago Style (17th ed.) Citation

Ridley, Mark, Achmad Fedyani Saifuddin, and Soegiarto. Masalah-masalah Evolusi. UI Press, 1991.

MLA (8th ed.) Citation

Ridley, Mark, et al. Masalah-masalah Evolusi. UI Press, 1991.