00364nam a2200121 a 4500008004100000050001600041100002100057245004200078246005900120260003200179300002200211350000900233120416s1978    ||||||||||||||||| ||    u  aBF 76.5 Mas  aMason, Emanuel J10aUnderstanding and conducting research  aapplications in education and the behavioural sciences  aNew YorkbMcGraw-Hillc1978  axiii, 411p. : ill  a0.00