Παραπομπή APA

Friedrich, . H. (1986). Geology and metallogeny of copper deposits: Proceedings of the copper symposium. Springer.

Παραπομπή Chicago Style

Friedrich, H. Geology and Metallogeny of Copper Deposits: Proceedings of the Copper Symposium. Berlin: Springer, 1986.

Παραπομπή MLA

Friedrich, H. Geology and Metallogeny of Copper Deposits: Proceedings of the Copper Symposium. Springer, 1986.