Blake, S. F. Geographical Guido to floras of the world: An annotated list with special reference to useful plants and common plant namens. U.S. Dep. of Agriculture.
Chicago Style (17th ed.) CitationBlake, S. F. Geographical Guido to Floras of the World: An Annotated List with Special Reference to Useful Plants and Common Plant Namens. Washington: U.S. Dep. of Agriculture.
MLA (9th ed.) CitationBlake, S. F. Geographical Guido to Floras of the World: An Annotated List with Special Reference to Useful Plants and Common Plant Namens. U.S. Dep. of Agriculture.
Warning: These citations may not always be 100% accurate.