Gaya APA

Caldwell, B, E, N, H, R, A, J, C. (1990). Principles of Accounting (4). Massachusetts: Houghton Mifflin Company.

Gaya MLA

Caldwell, Belverd, E., Needles,, Henry, R., Anderson,, James, C.. "Principles of Accounting". 4 Massachusetts: Houghton Mifflin Company, 1990. Text.