APA (7th ed.) Citation

Blake, S. F., & Curran, H. M. (1919). Genus Homalium in America; New South American spermatophytes collected by H. M. Curran. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Blake, S. F., and H. M. Curran. Genus Homalium in America; New South American Spermatophytes Collected by H. M. Curran. [Place of publication not identified]: U.S. Government Printing Office, 1919.

MLA (9th ed.) Citation

Blake, S. F., and H. M. Curran. Genus Homalium in America; New South American Spermatophytes Collected by H. M. Curran. U.S. Government Printing Office, 1919.