Παραπομπή APA

Collier, J. R. (1968). Effective long range business planning. Prentice-Hall of India.

Παραπομπή Chicago Style

Collier, James R. Effective Long Range Business Planning. New Jersey: Prentice-Hall of India, 1968.

Παραπομπή MLA

Collier, James R. Effective Long Range Business Planning. Prentice-Hall of India, 1968.