Barnard, Chris . Asking questions in Biology : design, analysis and presentation in practical work / Chris Barnard, Francis Gilbert and Peter McGregor. - England : Longman Scientific and Technical , 1993. - ix,157p. : ill.,figs.,table ; 23cm . Includes bibliography and index ISBN: 0582088542 UKP 12.99 Subjects--Index Terms: BIOLOGY-METHODOLOGY Dewey Class. No.: 570.28 / BAR/A