Dyfyniad APA

Gopalan, R., & Venkappayya, D. (2006). Textbook of engineering chemistry (3rd.). Vikas publishing house.

Dyfyniad Arddull Chicago

Gopalan, R., and D. Venkappayya. Textbook of Engineering Chemistry. 3rd. New Delhi: Vikas publishing house, 2006.

Dyfyniad MLA

Gopalan, R., and D. Venkappayya. Textbook of Engineering Chemistry. 3rd. Vikas publishing house, 2006.

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