Tohutoro APA (7th ed.)
Skrabec, Q. R. (2009). William McGuffey: Mentor to American industry. Algora Pub..
Tohutoru Kātū Chicago (17th ed.)
Skrabec, Quentin R. William McGuffey: Mentor to American Industry. New York: Algora Pub., 2009.
Tohutoro MLA (9th ed.)
Skrabec, Quentin R. William McGuffey: Mentor to American Industry. Algora Pub., 2009.
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