APA (7e ed.) Bronvermelding

Lavorgna, G. M. (1998). Environment: Issues and alternatives (Rev. ed.). Kendall/Hunt.

Chicago (17e ed.) Bronvermelding

Lavorgna, Gary M. Environment: Issues and Alternatives. Rev. ed. Dubuque: Kendall/Hunt, 1998.

MLA (9e ed.) Bronvermelding

Lavorgna, Gary M. Environment: Issues and Alternatives. Rev. ed. Kendall/Hunt, 1998.