Dyfyniad APA

Wist, T. J., & Davis, A. R. Floral structure and dynamics of nectar production in Echinacea pallida var. angustifolia (Asteraceae).

Dyfyniad Arddull Chicago

Wist, Tyler J., và Arthur R. Davis. Floral Structure and Dynamics of Nectar Production in Echinacea Pallida Var. Angustifolia (Asteraceae).

Dyfyniad MLA

Wist, Tyler J., và Arthur R. Davis. Floral Structure and Dynamics of Nectar Production in Echinacea Pallida Var. Angustifolia (Asteraceae).

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