Gaya APA
Nash, W, A., Sturgess, C. (1983).
Schaum's outline of theory and problems strength of materials .
Singapore:
McGraw-Hill.
Gaya MLA
Nash, William, A.., Sturgess, C.E.N..
"Schaum's outline of theory and problems strength of materials".
Singapore:
McGraw-Hill,
1983.
Text.