Παραπομπή APA

Barnes M P & Simon J L. (1969). Patterns in the use of books in large research libraries. University of Chicago Press.

Παραπομπή Chicago Style

Barnes M P και Simon J L. Patterns in the Use of Books in Large Research Libraries. Chicago: University of Chicago Press, 1969.

Παραπομπή MLA

Barnes M P και Simon J L. Patterns in the Use of Books in Large Research Libraries. University of Chicago Press, 1969.