3 1 40 TIMOSHENKO, S. Additional Author YOUNG, D. H. Additional Author mixed material London McGRAW-HILL BOOK COMPANY 1956 Engineering_mechanics_4th_ed.jpg TIMOSHENKO,S.P. Additional Author YOUNG,D.H. Additional Author mixed material New York litton educational publishing 1968 Elements_Of_Strength_of_Materials_5nd_ed.jpg Timoshenko, S.P. Primary Author Young, D.H. Primary Author mixed material 007Y858071 London Mc Graw Hill International Book Company 1965 Theory_of_Structures.jpg