APA aipamena

Beer, J. (1979). The investigation of agro-forestry systems: Methodology utilized by CATIE.

Chicago Style aipamena

Beer, J. The Investigation of Agro-forestry Systems: Methodology Utilized By CATIE. 1979.

MLA aipamena

Beer, J. The Investigation of Agro-forestry Systems: Methodology Utilized By CATIE. 1979.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.