Books by G. D. Crain:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Crain, G. D. (Gustavus D.), 1885-: Classes of advertising. (International textbook company, 1929), also by Edward H. Schulze, John T. Hoyle, and N.W. Ayer & Son (page images at HathiTrust)
Find more by G. D. Crain at your library, or elsewhere.