Cita APA

Kochar, R. S., & Sudarshan, K. N. (1997). Theories and principles of librarianship.

Citación estilo Chicago

Kochar, R S., y K N. Sudarshan. Theories and Principles of Librarianship. New Delhi, APH Publishing Corporation, 1997.

Cita MLA

Kochar, R S., y K N. Sudarshan. Theories and Principles of Librarianship. 1997.