Moyle, J. B., & Moyle, E. W. (2001). Northland wildflowers: The comprehensive guide to the Minnesota region (Rev. ed.). University of Minnesota Press.
Citace podle Chicago (17th ed.)Moyle, John B., a Evelyn W. Moyle. Northland Wildflowers: The Comprehensive Guide to the Minnesota Region. Rev. ed. Minneapolis: University of Minnesota Press, 2001.
Citace podle MLA (9th ed.)Moyle, John B., a Evelyn W. Moyle. Northland Wildflowers: The Comprehensive Guide to the Minnesota Region. Rev. ed. University of Minnesota Press, 2001.
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