Ruxton, Graeme D. Colegrava, Nick Experimental design for the life sciences / by Graeme D. Ruxton and Nick Colegrava - 2nd ed. - New Delhi : Oxford University Press , 2006 . - 162 p. Paper Back ISBN: 9780195686326 Subjects--Topical Terms: Life sciencesReplication, samplingIndividual variation Dewey Class. No.: 570.724 / GRA-E