APA
Virmani O. P., Narula A. K., . (1995). Applied chemistry. New Delhi: New Age International.
Chicago
Virmani O P, Narula A K, . 1995. Applied chemistry. New Delhi: New Age International.
Harvard
Virmani O. P., Narula A. K., . (1995). Applied chemistry. New Delhi: New Age International.
MLA
Virmani O P, Narula A K, . Applied chemistry. New Delhi: New Age International. 1995.