Gaya APA
Smith, C, B, A, R, E.
(1980).
Conceptual Models In Exploration Geochemistry
.
Netherlands:
Elsevier.
Gaya MLA
Smith, C.R.M, Butt, And, R., E.
"Conceptual Models In Exploration Geochemistry".
Netherlands:
Elsevier,
1980.
Textbook.