Gaya APA

Timoshenko, S., Swanson, C, P. (1976). **Strength of materials Part I elementary theory and problems . New York: New York: Robert E. Krieger; 1976.

Gaya MLA

Timoshenko, S.., Swanson, Carl, P.. "**Strength of materials Part I elementary theory and problems". New York: New York: Robert E. Krieger; 1976, 1976. Text.