Não informado. (1996). Agriculture and environment for developing regions. Royal Tropical Institute.
Chicago-Zitierstil (17. Ausg.)Não informado. Agriculture and Environment for Developing Regions. Amsterdam: Royal Tropical Institute, 1996.
MLA-Zitierstil (8. Ausg.)Não informado. Agriculture and Environment for Developing Regions. Royal Tropical Institute, 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.