APA-Zitierstil (7. Ausg.)

Gustafson, A. F., Guise, C. H., Hamilton, W. J., & Ries, H. (1949). Conservation in the United States (Third edition.). Comstock Publishing Associates, a division of Cornell University Press.

Chicago-Zitierstil (17. Ausg.)

Gustafson, Axel F., C. H. Guise, William J. Hamilton, und Heinrich Ries. Conservation in the United States. Third edition. Ithaca, N.Y: Comstock Publishing Associates, a division of Cornell University Press, 1949.

MLA-Zitierstil (9. Ausg.)

Gustafson, Axel F., et al. Conservation in the United States. Third edition. Comstock Publishing Associates, a division of Cornell University Press, 1949.