APA (7th ed.) Citation

Perha, Y. (2016). Theodore Roosevelt's Policy in the Field of Ecology: Conservation Natural Resources.

Chicago Style (17th ed.) Citation

Perha, Yu. Theodore Roosevelt's Policy in the Field of Ecology: Conservation Natural Resources. 2016.

MLA (8th ed.) Citation

Perha, Yu. Theodore Roosevelt's Policy in the Field of Ecology: Conservation Natural Resources. 2016.

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