Cita APA

Palmer, R. C. 1., & Palmer, R. C. 1. (1983). Online reference and information retrieval. Littleton, Colo: Libraries Unlimited.

Citación estilo Chicago

Palmer, Roger C. 1943-, y Roger C. 1943- Palmer. Online Reference and Information Retrieval. Littleton, Colo: Libraries Unlimited, 1983.

Cita MLA

Palmer, Roger C. 1943-, y Roger C. 1943- Palmer. Online Reference and Information Retrieval. Littleton, Colo: Libraries Unlimited, 1983.