APA

Gupta N. D., . (1997). Environmental Accounting. new delhi: wheeler publishing.

Chicago

Gupta N Das, . 1997. Environmental Accounting. new delhi: wheeler publishing.

Harvard

Gupta N. D., . (1997). Environmental Accounting. new delhi: wheeler publishing.

MLA

Gupta N Das, . Environmental Accounting. new delhi: wheeler publishing. 1997.