APA (7th ed.) Citation

Patnaik, S. N., & Hopkins, D. A. (2004). Strength of materials: A unified theory. Elsevier.

Chicago Style (17th ed.) Citation

Patnaik, Surya N., and Dale A. Hopkins. Strength of Materials: A Unified Theory. Amsterdam [u.a.]: Elsevier, 2004.

MLA (9th ed.) Citation

Patnaik, Surya N., and Dale A. Hopkins. Strength of Materials: A Unified Theory. Elsevier, 2004.