APA (7th ed.) Citation

Daugherty, L. H., & Stagner, H. R. (1941). The Upper Triassic flora of Arizona. [publisher not identified].

Chicago Style (17th ed.) Citation

Daugherty, Lyman Harry, and Howard Ralph Stagner. The Upper Triassic Flora of Arizona. Washington, D. C.: [publisher not identified], 1941.

MLA (9th ed.) Citation

Daugherty, Lyman Harry, and Howard Ralph Stagner. The Upper Triassic Flora of Arizona. [publisher not identified], 1941.