Mathias, M. E., & Constance, L. (1942). New combinations and new names in the Umbelliferae ([Sonderdr.].).
Chicago Style (17th ed.) CitationMathias, Mildred E., and Lincoln Constance. New Combinations and New Names in the Umbelliferae. [Sonderdr.]. 1942.
MLA (9th ed.) CitationMathias, Mildred E., and Lincoln Constance. New Combinations and New Names in the Umbelliferae. [Sonderdr.]. 1942.
Warning: These citations may not always be 100% accurate.