Παραπομπή APA

Perrigo, A. (1968). Modern management techniques. D Van Nostrand.

Παραπομπή Chicago Style

Perrigo, A.E.B. Modern Management Techniques. London: D Van Nostrand, 1968.

Παραπομπή MLA

Perrigo, A.E.B. Modern Management Techniques. D Van Nostrand, 1968.