APA-viite

Ramamrutham, S., & Narayanan, R. (2004). Strength of materials. Dhanpat Rai.

Chicago-tyylinen lähdeviittaus

Ramamrutham, S., ja R. Narayanan. Strength of Materials. New Delhi: Dhanpat Rai, 2004.

MLA-viite

Ramamrutham, S., ja R. Narayanan. Strength of Materials. Dhanpat Rai, 2004.