APA (7th ed.) Citation

Den Hartog, J. P. (1961). Strength of materials: By J. P. Den Hartog. Dover.

Chicago Style (17th ed.) Citation

Den Hartog, Jacob P. Strength of Materials: By J. P. Den Hartog. New York: Dover, 1961.

MLA (9th ed.) Citation

Den Hartog, Jacob P. Strength of Materials: By J. P. Den Hartog. Dover, 1961.