Stanley Hyman 
Associations and Consultants [PDF ebook] 
External Aid to Management

Originally published in 1970. Trade associations and consultants in their many varieties are arguably the most important of our economic organisations. The people that manage those organisations are among the most influential members of modern society. The research reported in this book constitutes one of the first attempts to obtain systematic knowledge about the process of helping management. This title will be of interest to students of business, management, and economics, as well as policy-makers concerned with external aids in government, associations, and firms.