Gaya APA

Grasberg : Mining The Richest and Most Remote Deposit of Copper and Gold In The World, In The Mountains of Irian Jaya, Indonesia. (1990). New Orleans: Freeport-McMoRan Copper & Gold Inc..

Gaya MLA

Grasberg : Mining The Richest and Most Remote Deposit of Copper and Gold In The World, In The Mountains of Irian Jaya, Indonesia. 1. New Orleans: Freeport-McMoRan Copper & Gold Inc., 1990. Text.