APA Style

Timoshenko, S, P., MacCullough, G, H. (1949). Elements of Strength of Materials (3rd Edition). New York, USA: D. Van Nostrand Company, Inc..

MLA Style

Timoshenko, Stephen, P.., MacCullough, Gleason, H.. "Elements of Strength of Materials". 3rd Edition New York, USA: D. Van Nostrand Company, Inc., 1949. Book.