Lua APA (7ú heag.)
Ferry, B. W., Baddeley, M. S., & Hawksworth, D. L. (1973). Air pollution and lichens. Athlone Pr.
Lua i Stíl Chicago (17ú heag.)
Ferry, B. W., M. S. Baddeley, agus D. L. Hawksworth. Air Pollution and Lichens. London: Athlone Pr, 1973.
Lua MLA (9ú heag.)
Ferry, B. W., et al. Air Pollution and Lichens. Athlone Pr, 1973.
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