Gaver, M. V. (1971). Services of secondary school media centers: Evaluation and development. American Library Association.
Citazione stile Chigago Style (17a edizione)Gaver, Mary Virginia. Services of Secondary School Media Centers: Evaluation and Development. Chicago: American Library Association, 1971.
Citatione MLA (9a ed.)Gaver, Mary Virginia. Services of Secondary School Media Centers: Evaluation and Development. American Library Association, 1971.
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