View source for Reference:Hall1967a


		{{Reference
		| entryid=hall1967a
		| titleid=Reference:hall1967a
		| checksum=7cdc7770fa4f97c1528d605e2387961e
    		| verbatimtext=Hall, G. W. 1967. A Biosystematic Study of the North American Complex of the Genus Bidens (Compositae). Ph.D. dissertation. Indiana University.
    
		| author=Hall, G.W.
    		| year=1967
    		| title=A Biosystematic Study of the North American Complex of the Genus Bidens (Compositae)
    
    		| type=Ph.D. dissertation
    		| institution=Indiana University
  
		}}