000
00259nam a2200109Ia 4500
100
_a
Best,J.M.& Kahn, J.V.
942
_c
BK
245
_a
Research in education 5th ed
260
_a
Prentice -Hall, New york
_c
1986
082
_a
370.78 Bes/Kah
300
_a
xii,380
999
_c
68463
_d
68463