Παραπομπή APA

Guilbert,John M, & Park,Charles F. (2015). Geology of Ore Deposits. C B S.

Παραπομπή Chicago Style

Guilbert,John M, και Park,Charles F. Geology of Ore Deposits. NewDelhi: C B S, 2015.

Παραπομπή MLA

Guilbert,John M, και Park,Charles F. Geology of Ore Deposits. C B S, 2015.