APA

Fry George and Associates i., . (1961). Study of circulation control systems: public libraries, college and university libraries, special libraries. Chicago: Library Technology Project of The American Library Association.

Chicago

Fry George and Associates inc, . 1961. Study of circulation control systems: public libraries, college and university libraries, special libraries. Chicago: Library Technology Project of The American Library Association.

Harvard

Fry George and Associates i., . (1961). Study of circulation control systems: public libraries, college and university libraries, special libraries. Chicago: Library Technology Project of The American Library Association.

MLA

Fry George and Associates inc, . Study of circulation control systems: public libraries, college and university libraries, special libraries. Chicago: Library Technology Project of The American Library Association. 1961.