McCollough, E. F., Van Buren, M., & Stearns, L. E. (1931). Essentials in library administration (4th ed. rev.). American Library Administration.
Chicago-referens (17:e uppl.)McCollough, Ethel Farquhar, Maud Van Buren, och Lutie Eugenia Stearns. Essentials in Library Administration. 4th ed. rev. Chicago: American Library Administration, 1931.
MLA-referens (8:e uppl.)McCollough, Ethel Farquhar, et al. Essentials in Library Administration. 4th ed. rev. American Library Administration, 1931.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.