Gaya APA
Hay, L, E., Engstrom, J, H. (1987).
Essentials of accounting for gevernmental and not-for-profit organizations .
Illinois:
Irwin.
Gaya MLA
Hay, Leon, E., Engstrom, John, H.
"Essentials of accounting for gevernmental and not-for-profit organizations".
Illinois:
Irwin,
1987.
Text.