APA-čujuhus (7. p.)
Weber, W. A., & Wittmann, R. C. (2012). Colorado flora: A field guide to the vascular plants (4th ed.). University Press of Colorado.
Chicago-čujuhus (17. p.)
Weber, William A., juo Ronald C. Wittmann. Colorado Flora: A Field Guide to the Vascular Plants. 4th ed. Boulder, Colo.: University Press of Colorado, 2012.
MLA-čujuhus (9. p.)
Weber, William A., juo Ronald C. Wittmann. Colorado Flora: A Field Guide to the Vascular Plants. 4th ed. University Press of Colorado, 2012.
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