Cita APA (7th ed.)

ebrary, Inc, Spies, T. A., & Duncan, S. L. (2009). Old growth in a New World: A Pacific Northwest icon reexamined. Island Press.

Cita Chicago (17th ed.)

ebrary, Inc, Thomas A. Spies, i Sally L. Duncan. Old Growth in a New World: A Pacific Northwest Icon Reexamined. Washington, D.C.: Island Press, 2009.

Cita MLA (9th ed.)

ebrary, Inc, et al. Old Growth in a New World: A Pacific Northwest Icon Reexamined. Island Press, 2009.