APA (7th ed.) Citation

Singh, N. B., Das, S. S., & Singh, A. K. (2009). Physical chemistry. New Age International.

Chicago Style (17th ed.) Citation

Singh, N. B., Shiva Saran Das, and A. K. Singh. Physical Chemistry. New Delhi: New Age International, 2009.

MLA (9th ed.) Citation

Singh, N. B., et al. Physical Chemistry. New Age International, 2009.