Gaya APA

Wyllie, R, J, M., Jr, G, O, A. (1975). World mining Glosssary of mining processing and geological terms . San Fransisco: Miller Freeman Publications, Inc.

Gaya MLA

Wyllie, R., J., M.., Jr, George, O., Argall,. "World mining Glosssary of mining processing and geological terms". San Fransisco: Miller Freeman Publications, Inc, 1975. Textbook.