APA
Singer F. L., . (1980). Strength of materials. [Place of publication not identified]: Harper & Row.
Chicago
Singer Ferdinand L, . 1980. Strength of materials. [Place of publication not identified]: Harper & Row.
Harvard
Singer F. L., . (1980). Strength of materials. [Place of publication not identified]: Harper & Row.
MLA
Singer Ferdinand L, . Strength of materials. [Place of publication not identified]: Harper & Row. 1980.