Walkor, L. J. (1963). A guide for the librarian in Seventh-day Adventist secondary Schools.
Čikaški stil citiranja (17. izdanje)Walkor, Louis J. A Guide for the Librarian in Seventh-day Adventist Secondary Schools. Takoma Park, 1963.
MLA način citiranja (9. izdanje)Walkor, Louis J. A Guide for the Librarian in Seventh-day Adventist Secondary Schools. 1963.
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