Dyfyniad APA
Lehri, R. S., & Lehri, A. S. Strength of materials: (mechanics of materials) (7th ed.). S. K. Kataria.
Dyfyniad Arddull Chicago
Lehri, Raghbir Singh, and Amardeep Singh Lehri. Strength of Materials: (mechanics of Materials). 7th ed. Delhi: S. K. Kataria.
Dyfyniad MLA
Lehri, Raghbir Singh, and Amardeep Singh Lehri. Strength of Materials: (mechanics of Materials). 7th ed. S. K. Kataria.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.