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by Raven, Peter H.; Hassenzahl, David M.; Berg, Linda R.
by Raven, Peter H.; Hassenzahl, David M.; Hager, Mary Catherine; et al.
by Hassenzahl,David M.; Hager, Mary Catherine; Gift, Nancy Y.; et al.
by Peter H. Raven; David M. Hassenzahl; Linda R. Berg
by Hassenzahl, David M.
by Peter H. Raven, David M. Hassenzahl, Mary Catherine Hager, Nancy Y. Gift, Linda R. Berg
by Kammen, Daniel M.; Hassenzahl, David M.
by Peter H. Raven (Missouri Botanical Garden); Linda R. Berg (Former Affiliations: University of Maryland, College Park St. Petersburg College ); David M. Hassenzahl (University of Nevada, Las Vegas)
University of Maryland, College Park
St. Petersburg College
)
by Raven, Peter H.; Berg, Linda R.; Hassenzahl, David M.