APA (7th ed.) Citation

Hawksworth, D. L., & Rose, F. (1976). Lichens as pollution monitors. E. Arnold.

Chicago Style (17th ed.) Citation

Hawksworth, D. L., and Francis Rose. Lichens as Pollution Monitors. London: E. Arnold, 1976.

MLA (9th ed.) Citation

Hawksworth, D. L., and Francis Rose. Lichens as Pollution Monitors. E. Arnold, 1976.

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