APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.