McCallum, A. N., & Horn, P. W. (1908). The new century spelling book: In two parts : for primary and grammar grades. Silver, Burdett and Company.
Čikaški stil citiranja (17. izdanje)McCallum, A. N., i Paul W. Horn. The New Century Spelling Book: In Two Parts : For Primary and Grammar Grades. New York ; Boston ; Chicago: Silver, Burdett and Company, 1908.
MLA način citiranja (8. izdanje)McCallum, A. N., i Paul W. Horn. The New Century Spelling Book: In Two Parts : For Primary and Grammar Grades. Silver, Burdett and Company, 1908.
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