APA
Timoshenko S, Young, . (1968). Elements of Strength of Materials. New York: Van Nostrand & East West.
Chicago
Timoshenko S, Young, . 1968. Elements of Strength of Materials. New York: Van Nostrand & East West.
Harvard
Timoshenko S, Young, . (1968). Elements of Strength of Materials. New York: Van Nostrand & East West.
MLA
Timoshenko S, Young, . Elements of Strength of Materials. New York: Van Nostrand & East West. 1968.