Abstract

References
1.
Linn
M. W.
Shane
R.
Webb
N. L.
Pratt
T. C.
Cultural factors and attrition in drug abuse treatment . International Journal of the Addictions , 1979 , 14 , 259 –280 .
2.
Staples
R.
Introduction to black sociology . New York : McGraw-Hill , 1976 .
