APA Citation

Koopowitz, H. (1990). Plant extinction: A global crisis. London: Christopher Helm.

Chicago Style Citation

Koopowitz, Harold. Plant Extinction: A Global Crisis. London: Christopher Helm, 1990.

MLA Citation

Koopowitz, Harold. Plant Extinction: A Global Crisis. London: Christopher Helm, 1990.

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