APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.