APA
Ramamrutham S. &. N. R., . (1998). Strength of materials. Dhanpat Rai Publ, New Delhi: .
Chicago
Ramamrutham S & Narayan R, . 1998. Strength of materials. Dhanpat Rai Publ, New Delhi: .
Harvard
Ramamrutham S. &. N. R., . (1998). Strength of materials. Dhanpat Rai Publ, New Delhi: .
MLA
Ramamrutham S & Narayan R, . Strength of materials. Dhanpat Rai Publ, New Delhi: . 1998.