* {{cite book | last=Griffiths | first=Anthony J. F. | last2=Ganders | first2=Fred R. | last3=Columbia | first3=University of British | title=Wildflower Genetics | date=1983 | isbn=0-919843-00-X}}
<ref name="b896">{{cite book | last=Griffiths | first=Anthony J. F. | last2=Ganders | first2=Fred R. | last3=Columbia | first3=University of British | title=Wildflower Genetics | date=1983 | isbn=0-919843-00-X | page=}}</ref>