Gaya APA

Troxell, G, E., Davis, H, E. (1956). COMPOSITION AND PROPERTIES OF CONCRETE . New York: MCGRAW-HILL, New York.

Gaya MLA

Troxell, George, Earl., Davis, Harmer, E.. "COMPOSITION AND PROPERTIES OF CONCRETE". New York: MCGRAW-HILL, New York, 1956. Textbook.