View source for Reference:Ockendon1969a


		{{Reference
		| entryid=ockendon1969a
		| titleid=Reference:ockendon1969a
		| checksum=1b8aba8a0d70ee5ffa64bfd2c95a0d06
    		| verbatimtext=Ockendon, D. L., S. M. Walters, and T. P. Whiffen. 1969. Variation within Centaurea nigra. Proc. Bot. Soc. Brit. Isles 7: 549–552.
    
		| author=Ockendon, D.L.;
				Walters, S.M.;
				Whiffen, T.P.
    		| year=1969
    		| title=Variation within Centaurea nigra
    		| journal=Proc. Bot. Soc. Brit. Isles
    		| volume=7
    		| pages=549–552
    
  
		}}