Citação norma APA

Bell, M. A. M., Beckett, J. M., & Hubbard, W. F. (1974). Impact of harvesting on forest environments and resources. Canadian Forestry Service, Dept. of the Environment.

Citação norma Chicago

Bell, Marcus A. M., Jennifer M. Beckett, and William F. Hubbard. Impact of Harvesting on Forest Environments and Resources. Ottawa: Canadian Forestry Service, Dept. of the Environment, 1974.

Citação norma MLA

Bell, Marcus A. M., et al. Impact of Harvesting on Forest Environments and Resources. Canadian Forestry Service, Dept. of the Environment, 1974.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.