Παραπομπή APA

Luepke, G. (1985). Economic analysis of heavy minerals in sediments. Van Nostrand Reinhold Company.

Παραπομπή Chicago Style

Luepke, Gretchen. Economic Analysis of Heavy Minerals in Sediments. New York: Van Nostrand Reinhold Company, 1985.

Παραπομπή MLA

Luepke, Gretchen. Economic Analysis of Heavy Minerals in Sediments. Van Nostrand Reinhold Company, 1985.