APA استشهاد

Viswanathan, C. G. (1967). Public library operations and services (2nd ed.).

استشهاد بنمط شيكاغو

Viswanathan, C. G. Public Library Operations and Services. 2nd ed. 1967.

MLA استشهاد

Viswanathan, C. G. Public Library Operations and Services. 2nd ed. 1967.