Gaya APA

Sawyer, C, N. et al (2003). (PASCA - TEKNIK SIPIL) Chemistry Environmental Engineering and Science (5). USA: Mc Graw Hiil.

Gaya MLA

Sawyer, Clair, N.. et al. "(PASCA - TEKNIK SIPIL) Chemistry Environmental Engineering and Science". 5 USA: Mc Graw Hiil, 2003. .