APA Citation

Billings, W. D. (1964). Plants and the ecosystem. London: Macmillan.

Chicago Style Citation

Billings, William Dwight. Plants and the Ecosystem. London: Macmillan, 1964.

MLA Citation

Billings, William Dwight. Plants and the Ecosystem. London: Macmillan, 1964.

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