Boer, H. d. (1998). Coffee cultivation in the watershed of the river Aranjuez.
Chicago Style aipamenaBoer, H. den. Coffee Cultivation in the Watershed of the River Aranjuez. 1998.
MLA aipamenaBoer, H. den. Coffee Cultivation in the Watershed of the River Aranjuez. 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.