APA ציטוט

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

Citación estilo Chicago

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

ציטוט MLA

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