APA (7th ed.) Citation

Den Hartog, J. P. (1949). Strength of materials (1a ed.). Dover Publications, Inc.

Chicago Style (17th ed.) Citation

Den Hartog, J. P. Strength of Materials. 1a ed. New York: Dover Publications, Inc, 1949.

MLA (9th ed.) Citation

Den Hartog, J. P. Strength of Materials. 1a ed. Dover Publications, Inc, 1949.