APA-referens (7:e uppl.)
Abdu, N. (2010). Availability, transfer and balances of heavy metals in urban agriculture of West Africa. Kassel University Press.
Chicago-referens (17:e uppl.)
Abdu, Nafiu. Availability, Transfer and Balances of Heavy Metals in Urban Agriculture of West Africa. Kassel: Kassel University Press, 2010.
MLA-referens (9:e uppl.)
Abdu, Nafiu. Availability, Transfer and Balances of Heavy Metals in Urban Agriculture of West Africa. Kassel University Press, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.