APA (7th ed.) Citation

Dietrich, W. (1978). The South American species of Oenothera sect. Oenothera (Raimannia, Renneria; Onagraceae). Missouri Botanical Garden.

Chicago Style (17th ed.) Citation

Dietrich, Werner. The South American Species of Oenothera Sect. Oenothera (Raimannia, Renneria; Onagraceae). Missouri: Missouri Botanical Garden, 1978.

MLA (9th ed.) Citation

Dietrich, Werner. The South American Species of Oenothera Sect. Oenothera (Raimannia, Renneria; Onagraceae). Missouri Botanical Garden, 1978.

Warning: These citations may not always be 100% accurate.