APA-referens

Shilpa Shyam, Verma, H. N., & Bhargava, S. K. (2006). Air pollution and it's impact on plant growth. New India Publishing Agency.

Chicago-stil citat

Shilpa Shyam, H N. Verma, och S K. Bhargava. Air Pollution and It's Impact on Plant Growth. New Delhi: New India Publishing Agency, 2006.

MLA-referens

Shilpa Shyam, et al. Air Pollution and It's Impact on Plant Growth. New India Publishing Agency, 2006.