APA Edition Citation

(2001). The world of science: : Expanding environment,No.21. S Chand and Company.

Chicago Edition Citation

The World of Science: : Expanding Environment,No.21. New Delhi: S Chand and Company, 2001.

MLA Edition Citation

The World of Science: : Expanding Environment,No.21. S Chand and Company, 2001.

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