Gaya APA

E.Edmond, A, J, S, H, &, C. (1981). Essentials of Basic Mathematics (3). California: The Benjamin/Cummings Publishing Company, Inc..

Gaya MLA

E.Edmond, Allyn, J.Washington,, Samuel, H.Plotkin, &, Carolyn. "Essentials of Basic Mathematics". 3 California: The Benjamin/Cummings Publishing Company, Inc., 1981. Text.