Ranganathan, S., & Gopinath, M. (1963). Prolegomena to library classification (3rd ed.). Saraada Ranganathan endowment for library science.
استشهاد بنمط شيكاغوRanganathan, S.R, و M.A Gopinath. Prolegomena to Library Classification. 3rd ed. Bangalore: Saraada Ranganathan endowment for library science, 1963.
MLA استشهادRanganathan, S.R, و M.A Gopinath. Prolegomena to Library Classification. 3rd ed. Saraada Ranganathan endowment for library science, 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.