एपीए उद्धरण

Sharma, H. (2004). Ozone depletion and environmental impacts. Pointer.

शिकागो स्टाइल उद्धरण

Sharma, H.S. Ozone Depletion and Environmental Impacts. Jaipur: Pointer, 2004.

एमएलए उद्धरण

Sharma, H.S. Ozone Depletion and Environmental Impacts. Pointer, 2004.