APA-Zitierstil (7. Ausg.)

Birchard, B. (2005). Nature's keepers: The remarkable story of how the Nature Conservancy became the largest environmental organization in the world (1. ed.). Jossey-Bass.

Chicago-Zitierstil (17. Ausg.)

Birchard, Bill. Nature's Keepers: The Remarkable Story of How the Nature Conservancy Became the Largest Environmental Organization in the World. 1. ed. San Francisco: Jossey-Bass, 2005.

MLA-Zitierstil (9. Ausg.)

Birchard, Bill. Nature's Keepers: The Remarkable Story of How the Nature Conservancy Became the Largest Environmental Organization in the World. 1. ed. Jossey-Bass, 2005.