Cita APA (7th ed.)
Lehri, R. S., & Lehri, A. S. Strength of materials: (mechanics of materials) (7th ed.). S. K. Kataria.
Cita Chicago (17th ed.)
Lehri, Raghbir Singh, i Amardeep Singh Lehri. Strength of Materials: (mechanics of Materials). 7th ed. Delhi: S. K. Kataria.
Cita MLA (9th ed.)
Lehri, Raghbir Singh, i Amardeep Singh Lehri. Strength of Materials: (mechanics of Materials). 7th ed. S. K. Kataria.
Atenció: Aquestes cites poden no estar 100% correctes.