Gaya APA
Christensen, C, R., Andrews, K, R. (1982).
Business Policy: Test and Cases (Edisi Kelima).
United States of America:
Richard D. Irwin, Inc..
Gaya MLA
Christensen, C., Ronald., Andrews, Kenneth, R..
"Business Policy: Test and Cases".
Edisi Kelima
United States of America:
Richard D. Irwin, Inc.,
1982.
Texts.