The Online Books Page

Online Books by

Halbert Carl Christofferson

(Christofferson, Halbert Carl, 1894-)

Books from the extended shelves:

• Christofferson, Halbert Carl, 1894-: Demonstrations and laboratory experiences in the science of aeronautics : a guide for teachers and students (McGraw-Hill book company, inc., 1945), also by Aviation education research committee.,, American Council on Education, and United States. Civil Aeronautics Administration (page images at HathiTrust)
• Christofferson, Halbert Carl, 1894-: Learning activities in elementary algebra (College Entrance Book Company, Inc., 1939), also by Earl J. Burnett and Regina Grosswege (page images at HathiTrust; US access only)

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