Gaya APA
Kastens, M, L. (1976).
Long Range Planning For You Business An Operating Manual .
Yogyakarta:
Pustaka Sinar Harapan.
Gaya MLA
Kastens, Merritt, L.
"Long Range Planning For You Business An Operating Manual".
Yogyakarta:
Pustaka Sinar Harapan,
1976.
Text.