Cita APA (7th ed.)

(1927). Circulation work in public libraries / by Jenie M. Flexner.

Cita Chicago (17th ed.)

Circulation Work in Public Libraries / by Jenie M. Flexner. 1927.

Cita MLA (9th ed.)

Circulation Work in Public Libraries / by Jenie M. Flexner. 1927.

Atenció: Aquestes cites poden no estar 100% correctes.