Gaya APA

S, S., Evans, D. (1973). International Symposium on Hydrometallurgy . United States of America: The American Institute of Mining, Metallurgical, and Petroleum Engineers.

Gaya MLA

S, Shoemaker,Robert., Evans, D.J.I.. "International Symposium on Hydrometallurgy". United States of America: The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1973. Text.