Blake, S. F. (1936). A new Plant of the genus Polygala from northern Mexico ([Sonderdr.].).
Chicago Style (17th ed.) CitationBlake, Sidney F. A New Plant of the Genus Polygala from Northern Mexico. [Sonderdr.]. 1936.
MLA (9th ed.) CitationBlake, Sidney F. A New Plant of the Genus Polygala from Northern Mexico. [Sonderdr.]. 1936.
Warning: These citations may not always be 100% accurate.