Ranganathan, S. R., & Gopinath, M. A. (1987). Colon classification (Ed. 7, basic and depth version.). Sarada Ranganathan Endowment for Library Science.
Cita Chicago Style (17a ed.)Ranganathan, S. R., y M. A. Gopinath. Colon Classification. Ed. 7, basic and depth version. Bangalore: Sarada Ranganathan Endowment for Library Science, 1987.
Cita MLA (9a ed.)Ranganathan, S. R., y M. A. Gopinath. Colon Classification. Ed. 7, basic and depth version. Sarada Ranganathan Endowment for Library Science, 1987.
Precaución: Estas citas no son 100% exactas.