APA Edition Citation

Sethi,M S, & Iqbal,S A. (1998). Encyclopaedia of nature and environment. Discovery publishing house.

Chicago Edition Citation

Sethi,M S, and Iqbal,S A. Encyclopaedia of Nature and Environment. New Delhi: Discovery publishing house, 1998.

MLA Edition Citation

Sethi,M S, and Iqbal,S A. Encyclopaedia of Nature and Environment. Discovery publishing house, 1998.

Warning: These citations may not always be 100% accurate.