Westergaard, Poul. <br/><br/>
Primary societies' marketing costs :    a case study and some genera l remarks, mostly on efficiency /  
Poul Westergaard. 
 - Dar es Salaam :    University College,    1969? 
 - 17 p. :    ill. ;    30 cm. 
 - University College, Dar es Salaam. Research Research Bureau ;    E.R .B. Paper 69.6 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Marketing -- Costs.<br/> Marketing.