Lua APA (7ú heag.)
Singhal, B. L. (1999). Strength of materials. Everest Pub.
Lua i Stíl Chicago (17ú heag.)
Singhal, B. L. Strength of Materials. Calcutta: Everest Pub, 1999.
Lua MLA (9ú heag.)
Singhal, B. L. Strength of Materials. Everest Pub, 1999.
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