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Investigation of the Compressive Strength of Spruce Struts of Rectangular Cross Section and the Derivation of Formulas Suitable for the Use in Airplane Design

Charles P. HoffmannFrederick John SchlinkHenry S. RawdonHomer Francis StaleyJames Ellsworth BoydKasson Stanford GibsonL. B. SeftonLouis John LarsonSamuel William EpsteinUnited States. National Bureau of StandardsEdward Philip Theodore TyndallR. L. MooreRichard Lawrence TemplinHarry John McNicholas

出版	U.S. Government Printing Office, 1920
URL	http://books.google.com.hk/books?id=LTFGAQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN