Gaya APA

Copley, P, A., Engstrom, J, H. (2007). Essential of accounting for governmental and not-for-profit organizations : 8th edition (8th ed.). New York: McGraw-Hill.

Gaya MLA

Copley, Paul, A.., Engstrom, John, H.. "Essential of accounting for governmental and not-for-profit organizations : 8th edition". 8th ed. New York: McGraw-Hill, 2007. Text.