Cita APA (7th ed.)

Riechel, R. (1989). Personnel needs and changing reference service. Library Professional Publications.

Cita Chicago (17th ed.)

Riechel, Rosemarie. Personnel Needs and Changing Reference Service. Hamden, Conn.: Library Professional Publications, 1989.

Cita MLA (8th ed.)

Riechel, Rosemarie. Personnel Needs and Changing Reference Service. Library Professional Publications, 1989.