APA-viite

Okafor, N. (2011). Environmental microbiology of aquatic & waste systems. Springer.

Chicago-tyylinen lähdeviittaus

Okafor, Nduka. Environmental Microbiology of Aquatic & Waste Systems. Heildelberg: Springer, 2011.

MLA-viite

Okafor, Nduka. Environmental Microbiology of Aquatic & Waste Systems. Springer, 2011.