APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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