Cita APA (7th ed.)
Johnson, P. (1997). New directions in technical services: Trends and sources (1993-1995). American Library Association.
Cita Chicago (17th ed.)
Johnson, Peggy. New Directions in Technical Services: Trends and Sources (1993-1995). Chicago: American Library Association, 1997.
Cita MLA (9th ed.)
Johnson, Peggy. New Directions in Technical Services: Trends and Sources (1993-1995). American Library Association, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.