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Online Books by

Herbert Druery Harper

Books from the extended shelves:

• Harper, Herbert Druery: Automobile shop mathematics (D. Van Nostrand Company, Inc., 1928) (page images at HathiTrust)
• Harper, Herbert Druery: Fundamentals of practical mathematics (Ginn, 1922), also by George Wentworth and David Eugene Smith (page images at HathiTrust)
• Harper, Herbert Druery: Machine-shop mathematics (Ginn, 1922), also by George Wentworth and David Eugene Smith (page images at HathiTrust)
• Harper, Herbert Druery: Plumbing, heating, and air conditioning shop mathematics (D. Van Nostrand company, inc., 1942) (page images at HathiTrust)
• Harper, Herbert Druery: Printing shop mathematics. (D. Van Nostrand company, inc., 1943) (page images at HathiTrust)

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