Παραπομπή APA

Ranganathan, S. R. (1961). Reference service (2nd ed.). SRELS.

Παραπομπή Chicago Style

Ranganathan, S R. Reference Service. 2nd ed. Banglore: SRELS, 1961.

Παραπομπή MLA

Ranganathan, S R. Reference Service. 2nd ed. SRELS, 1961.