APA (7th ed.) Citation

Mclaughlin, S. P. (1982). A Revision of the Southwestern Species of Amsonia (Apocynaceae). Zenodo.

Chicago Style (17th ed.) Citation

Mclaughlin, Steven P. A Revision of the Southwestern Species of Amsonia (Apocynaceae). Zenodo, 1982.

MLA (9th ed.) Citation

Mclaughlin, Steven P. A Revision of the Southwestern Species of Amsonia (Apocynaceae). Zenodo, 1982.

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