APA-viite (7. p.)
Abdu, N. (2010). Availability, transfer and balances of heavy metals in urban agriculture of West Africa. Kassel University Press.
Chicago-viite (17. p.)
Abdu, Nafiu. Availability, Transfer and Balances of Heavy Metals in Urban Agriculture of West Africa. Kassel: Kassel University Press, 2010.
MLA-viite (9. p.)
Abdu, Nafiu. Availability, Transfer and Balances of Heavy Metals in Urban Agriculture of West Africa. Kassel University Press, 2010.
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