APA-viite

(1992). Waste treatment and recycling: Course materials. School of biological and environmental sciences.

Chicago-tyylinen lähdeviittaus

Waste Treatment and Recycling: Course Materials. School of biological and environmental sciences, 1992.

MLA-viite

Waste Treatment and Recycling: Course Materials. School of biological and environmental sciences, 1992.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.