APA aipamena

Boer, H. d. (1998). Coffee cultivation in the watershed of the river Aranjuez.

Chicago Style aipamena

Boer, H. den. Coffee Cultivation in the Watershed of the River Aranjuez. 1998.

MLA aipamena

Boer, H. den. Coffee Cultivation in the Watershed of the River Aranjuez. 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.