Direct selling :
Berry, Richard
Direct selling : from door to door to network marketing / Richard Berry. - Oxford : Butterworth-Heinemann, 1997. - xxviii, 231 p. : ill.
0750622350
Direct selling.
Marketing.
Direct selling : from door to door to network marketing / Richard Berry. - Oxford : Butterworth-Heinemann, 1997. - xxviii, 231 p. : ill.
0750622350
Direct selling.
Marketing.