Παραπομπή APA

Velde, B. (1985). Clay minerals: :A physico-chemical explanation of their occurrence. Amsterdam Elsevier.

Παραπομπή Chicago Style

Velde, B. Clay Minerals: :A Physico-chemical Explanation of Their Occurrence. New york: Amsterdam Elsevier, 1985.

Παραπομπή MLA

Velde, B. Clay Minerals: :A Physico-chemical Explanation of Their Occurrence. Amsterdam Elsevier, 1985.