Bird, C. D., Thomson, J. W., Marsh, A. H., Scotter, G. W., & Wong, P. Y. (1981). Lichens from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada. II. Microlichens. Canadian Journal of Botany, 59(7), 1231.
Chicago Style (17th ed.) CitationBird, Charles D., John W. Thomson, Alfred H. Marsh, George W. Scotter, and Pak Yau Wong. "Lichens from the Area Drained by the Peel and Mackenzie Rivers, Yukon and Northwest Territories, Canada. II. Microlichens." Canadian Journal of Botany 59, no. 7 (1981): 1231.
MLA (9th ed.) CitationBird, Charles D., et al. "Lichens from the Area Drained by the Peel and Mackenzie Rivers, Yukon and Northwest Territories, Canada. II. Microlichens." Canadian Journal of Botany, vol. 59, no. 7, 1981, p. 1231.