APA aipamena

Nygård, R. (2000). Productivity of woody vegetation in Savanna woodlands in Burkina Faso. Swedish University of Agricultural Sciences.

Chicago Style aipamena

Nygård, Robert. Productivity of Woody Vegetation in Savanna Woodlands in Burkina Faso. Umeå: Swedish University of Agricultural Sciences, 2000.

MLA aipamena

Nygård, Robert. Productivity of Woody Vegetation in Savanna Woodlands in Burkina Faso. Swedish University of Agricultural Sciences, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.