Gaya APA

Alloway, B, J. (2010). Heavy metals in soils : trace metals and metalloids in soils and their bioavailability (ed. 3). New York: Springer.

Gaya MLA

Alloway, Brian, J. "Heavy metals in soils : trace metals and metalloids in soils and their bioavailability". ed. 3 New York: Springer, 2010. Text.