Hensel, E., & Veillette, P. D. (1969). Purchasing library materials in public and school libraries: A study of puchasing procedures and the relationships between libraries and purchasing agencies and dealers. American Library Association.
Citação norma ChicagoHensel, Evelyn, and Peter D. Veillette. Purchasing Library Materials in Public and School Libraries: A Study of Puchasing Procedures and the Relationships Between Libraries and Purchasing Agencies and Dealers. Chicago: American Library Association, 1969.
Citação norma MLAHensel, Evelyn, and Peter D. Veillette. Purchasing Library Materials in Public and School Libraries: A Study of Puchasing Procedures and the Relationships Between Libraries and Purchasing Agencies and Dealers. American Library Association, 1969.