Cita APA (7a ed.)

Hall, H. M. (1928). The genus haplopappus: A phylogenetic study in the compositae. Carnegie Institution.

Cita Chicago Style (17a ed.)

Hall, Harvey M. The Genus Haplopappus: A Phylogenetic Study in the Compositae. Washington: Carnegie Institution, 1928.

Cita MLA (8a ed.)

Hall, Harvey M. The Genus Haplopappus: A Phylogenetic Study in the Compositae. Carnegie Institution, 1928.