APA

Sher A., . (2021). Ecology: Concepts and applications. : McGraw-Hill.

Chicago

Sher Anna, . 2021. Ecology: Concepts and applications. : McGraw-Hill.

Harvard

Sher A., . (2021). Ecology: Concepts and applications. : McGraw-Hill.

MLA

Sher Anna, . Ecology: Concepts and applications. : McGraw-Hill. 2021.