Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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