Books by Hassel C. Schjelderup:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Schjelderup, Hassel C.: Aspects of the response of structures subject to sonic fatigue (Wright-Patterson Air Force Base, Ohio : Aeronautical Systems Division, Air Force Systems Command, U.S. Air Force, 1961., 1961), also by Arnold E. Galef, United States. Air Force. Air Research and Development Command, Wright Air Development Division, and National Engineering Science Company (page images at HathiTrust)
Find more by Hassel C. Schjelderup at your library, or elsewhere.