Johnson, L. (1933). National Survey of Secondary Education. Bulletin, 1932, No. 17. Monograph No. 17: The Secondary-School Library.
Citazione stile Chigago Style (17a edizione)Johnson, Lamar. National Survey of Secondary Education. Bulletin, 1932, No. 17. Monograph No. 17: The Secondary-School Library. 1933.
Citatione MLA (9a ed.)Johnson, Lamar. National Survey of Secondary Education. Bulletin, 1932, No. 17. Monograph No. 17: The Secondary-School Library. 1933.
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