Cita APA (7a ed.)

North, M. P. (1990). Old growth research areas of the Department of Natural Resources. Washington State Dept. of Natural Resources.

Cita Chicago Style (17a ed.)

North, Malcolm P. Old Growth Research Areas of the Department of Natural Resources. [Olympia, Wash.]: Washington State Dept. of Natural Resources, 1990.

Cita MLA (8a ed.)

North, Malcolm P. Old Growth Research Areas of the Department of Natural Resources. Washington State Dept. of Natural Resources, 1990.

Precaución: Estas citas no son 100% exactas.