Cita APA

Sanger, C. 1., Lessard, G., & Poulsen, G. 1. (1977). Trees for people: An account of the forestry research program supported by the International Development Research Centre. Ottawa, Canada: International Development Research Centre.

Citación estilo Chicago

Sanger, Clyde 1928-, Gilles Lessard, y Gunnar 1924- Poulsen. Trees for People: An Account of the Forestry Research Program Supported By the International Development Research Centre. Ottawa, Canada: International Development Research Centre, 1977.

Cita MLA

Sanger, Clyde 1928-, Gilles Lessard, y Gunnar 1924- Poulsen. Trees for People: An Account of the Forestry Research Program Supported By the International Development Research Centre. Ottawa, Canada: International Development Research Centre, 1977.