Gaya APA

Nriagu, J, O. (1978). Sulfur in the Environment, Part II: Ecological Impacts . New York: Jhon Wiley & Sons, Inc..

Gaya MLA

Nriagu, Jerome, O.. "Sulfur in the Environment, Part II: Ecological Impacts". New York: Jhon Wiley & Sons, Inc., 1978. Text.