Petikan APA

Ujang, Z., Henze, M., Curtis, T., Schertenleib, R., & Beal, L. L. (2004). Environmental engineering education for developing countries: Framework for the future. Elsevier Science B.V., Amsterdam.

Petikan Gaya Chicago

Ujang, Zaini, M. Henze, Tom Curtis, R. Schertenleib, and L. L. Beal. Environmental Engineering Education for Developing Countries: Framework for the Future. Elsevier Science B.V., Amsterdam, 2004.

Petikan MLA

Ujang, Zaini, et al. Environmental Engineering Education for Developing Countries: Framework for the Future. Elsevier Science B.V., Amsterdam, 2004.