APA (7th ed.) Citation

Dietrich, W., & Wagner, W. L. (1988). Systematics of Oenothera section Oenothera subsection Raimannia and subsection Nutantigemma (Onagraceae). American Society of Plant Taxonomists.

Chicago Style (17th ed.) Citation

Dietrich, Werner, and Warren Lambert Wagner. Systematics of Oenothera Section Oenothera Subsection Raimannia and Subsection Nutantigemma (Onagraceae). [Ann Arbor, Mich.]: American Society of Plant Taxonomists, 1988.

MLA (9th ed.) Citation

Dietrich, Werner, and Warren Lambert Wagner. Systematics of Oenothera Section Oenothera Subsection Raimannia and Subsection Nutantigemma (Onagraceae). American Society of Plant Taxonomists, 1988.