Gaya APA

Colijn, H. (1975). Weighing and Proportioning of Bulk Solids : Series on Bulk Materials Handling , Vol. 1 No.1, 1975 . United States of America: Trans Tech Publications.

Gaya MLA

Colijn, Hendrik. "Weighing and Proportioning of Bulk Solids : Series on Bulk Materials Handling , Vol. 1 No.1, 1975". United States of America: Trans Tech Publications, 1975. Text.