Παραπομπή APA

Clarke, L., & Buckley, A. (1977). The essence of change. Prentice Hall of India.

Παραπομπή Chicago Style

Clarke, Liz, και Adrian Buckley. The Essence of Change. New Delhi: Prentice Hall of India, 1977.

Παραπομπή MLA

Clarke, Liz, και Adrian Buckley. The Essence of Change. Prentice Hall of India, 1977.