000
00269nam a2200133Ia 4500
100
_a
Spector, Paul E
365
_e
_6
942
_c
BK
245
_a
Research designs
260
_a
Delhi
_b
sage publ
_c
1987
082
_a
1.42
_b
Spe
300
_a
80
546
_a
English
999
_c
342765
_d
342765
041
_a
eng