APA-referens

Ruddle, K. M. (1981). Renewable natural resources and the environment: Pressing problems in the developing world.

Chicago-stil citat

Ruddle, Kenneth; Manshard. Renewable Natural Resources and the Environment: Pressing Problems in the Developing World. Tycooly International Publishing Limited, Dublin, 1981.

MLA-referens

Ruddle, Kenneth; Manshard. Renewable Natural Resources and the Environment: Pressing Problems in the Developing World. 1981.