APA-viite (7. p.)
Camp, W. G., & Heath-Camp, B. (2016). Workbook to accompany managing our natural resources (6th ed.). Cengage Learning.
Chicago-viite (17. p.)
Camp, William G., ja Betty Heath-Camp. Workbook to Accompany Managing Our Natural Resources. 6th ed. United States: Cengage Learning, 2016.
MLA-viite (9. p.)
Camp, William G., ja Betty Heath-Camp. Workbook to Accompany Managing Our Natural Resources. 6th ed. Cengage Learning, 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.