Gaya APA

Nash, W, A., Sturgess, C. (1977). Theory and problems of strength of materials (SI metric) edition (2nd ed). New York: McGraw-Hill Book Co..

Gaya MLA

Nash, William, A.., Sturgess, CEN.. "Theory and problems of strength of materials (SI metric) edition". 2nd ed New York: McGraw-Hill Book Co., 1977. Printed Book.