APA

,, . (1998). Proceedings of the national workshop on environment statistics 1998. New Delhi: Central Statistical Organisation.

Chicago

,, . 1998. Proceedings of the national workshop on environment statistics 1998. New Delhi: Central Statistical Organisation.

Harvard

,, . (1998). Proceedings of the national workshop on environment statistics 1998. New Delhi: Central Statistical Organisation.

MLA

,, . Proceedings of the national workshop on environment statistics 1998. New Delhi: Central Statistical Organisation. 1998.