APA aipamena

Jiménez Otárola, F., & Beer, J. (1999). Multi-strata agroforestry systems with perennial crips.

Chicago Style aipamena

Jiménez Otárola, Francisco, y John Beer. Multi-strata Agroforestry Systems With Perennial Crips. 1999.

MLA aipamena

Jiménez Otárola, Francisco, y John Beer. Multi-strata Agroforestry Systems With Perennial Crips. 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.