APA (7th ed.) Citation

Hall, H. M. (1928). The genus Haplopappus: A phylogenetic study in the Compositae. Carnegie institution of Washington.

Chicago Style (17th ed.) Citation

Hall, Harvey Monroe. The Genus Haplopappus: A Phylogenetic Study in the Compositae. Washington: Carnegie institution of Washington, 1928.

MLA (9th ed.) Citation

Hall, Harvey Monroe. The Genus Haplopappus: A Phylogenetic Study in the Compositae. Carnegie institution of Washington, 1928.