APA (7th ed.) Citation

Heil, K. D. (2013). Flora of the four corners region: Vascular plants of the San Juan River drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil ... [et al.]. Missouri Botanical Garden.

Chicago Style (17th ed.) Citation

Heil, Kenneth D. Flora of the Four Corners Region: Vascular Plants of the San Juan River Drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil ... [et Al.]. St. Louis: Missouri Botanical Garden, 2013.

MLA (8th ed.) Citation

Heil, Kenneth D. Flora of the Four Corners Region: Vascular Plants of the San Juan River Drainage, Arizona, Colorado, New Mexico, and Utah / Kenneth D. Heil ... [et Al.]. Missouri Botanical Garden, 2013.