Gaya APA
Christensen, C. et al
(1982).
Business policy: text and cases
(
5th.ed.)
.
Homewood,Illinois:
Irwin.
Gaya MLA
Christensen, C.Roland. et al.
"Business policy: text and cases".
5th.ed.
Homewood,Illinois:
Irwin,
1982.
Text.