Παραπομπή σε μορφή APA (7η εκδ.)

Van Lill, C. F. M. (1999). A model for user needs and information use studies in library and information services.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Van Lill, Cecilla Francina Martina. A Model for User Needs and Information Use Studies in Library and Information Services. 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Van Lill, Cecilla Francina Martina. A Model for User Needs and Information Use Studies in Library and Information Services. 1999.