Παραπομπή APA

Bhatnagar, R. P., & Verma, I. B. (1978). Educational supervision. Loyal Book Depot.

Παραπομπή Chicago Style

Bhatnagar, R. P., και I. B. Verma. Educational Supervision. Meerut: Loyal Book Depot, 1978.

Παραπομπή MLA

Bhatnagar, R. P., και I. B. Verma. Educational Supervision. Loyal Book Depot, 1978.