Cita APA

Kaye, H., Knees, S., & Koopowitz, H. Plant Extinction: A Global Crisis.

Chicago Edition Citation

Kaye, Hilary, Sahina Knees, i Harold Koopowitz. Plant Extinction: A Global Crisis. London, Christopher Helm.

Cita MLA

Kaye, Hilary, et al. Plant Extinction: A Global Crisis.