Cita APA

Penland P R. (1960). Colon classification. Sarada Ranganathan Endowment.

Chicago Edition Citation

Penland P R. Colon Classification. Bangalore: Sarada Ranganathan Endowment, 1960.

Cita MLA

Penland P R. Colon Classification. Sarada Ranganathan Endowment, 1960.