Παραπομπή APA

Werf, H. v. d. (1994). Crop physiology of fiber hemp (Cannabis sativa L.).

Παραπομπή Chicago Style

Werf, Hayo van der. Crop Physiology of Fiber Hemp (Cannabis Sativa L.). Nederlands, 1994.

Παραπομπή MLA

Werf, Hayo van der. Crop Physiology of Fiber Hemp (Cannabis Sativa L.). 1994.