View source for Reference:Duvall1993b

		{{Reference
		| entryid=duvall1993b
		| titleid=Reference:duvall1993b
		| checksum=12253c5e196acd7c1c4be2b9f56c722f
    		| verbatimtext=Duvall, M. R., G. H. Learn Jr., L. E. Eguiarte, and M. T. Clegg. 1993. Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon. Proc. Natl. Acad. Sci. U.S.A. 90: 4641--4644.
    
		| author=Duvall, M.R.;
				Learn, G.H.;
				Eguiarte, L.E.;
				Clegg, M.T.
    		| year=1993
    		| title=Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon
    		| journal=Proc. Natl. Acad. Sci. U.S.A
    		| volume=90
    		| pages=4641–4644
    
  
		}}