Παραπομπή APA

Katz, B. (2000). New technologies and reference services. The harowth information press.

Παραπομπή Chicago Style

Katz, Bill. New Technologies and Reference Services. USA: The harowth information press, 2000.

Παραπομπή MLA

Katz, Bill. New Technologies and Reference Services. The harowth information press, 2000.