Παραπομπή APA

Shera J. H. (1970). Sociological foundations of librarianship.

Παραπομπή Chicago Style

Shera J. H. Sociological Foundations of Librarianship. 1970.

Παραπομπή MLA

Shera J. H. Sociological Foundations of Librarianship. 1970.