Blair, P. W. (1973). Political and social realities of development :: Recognition and response : from the 13th World Conference of the Society for International Development held in San José, Costa Rica, February 22-25, 1973 : selections from addresses, papers, and roundtables. Washington Dobbs Ferry, N.Y.: SID ;: Distributed exclusively by Oceana Publications.

Blair, Patricia Wohlgemuth. Political and Social Realities of Development :: Recognition and Response : From the 13th World Conference of the Society for International Development Held in San José, Costa Rica, February 22-25, 1973 : Selections From Addresses, Papers, and Roundtables. Washington Dobbs Ferry, N.Y.: SID ;: Distributed exclusively by Oceana Publications, 1973.

Blair, Patricia Wohlgemuth. Political and Social Realities of Development :: Recognition and Response : From the 13th World Conference of the Society for International Development Held in San José, Costa Rica, February 22-25, 1973 : Selections From Addresses, Papers, and Roundtables. Washington Dobbs Ferry, N.Y.: SID ;: Distributed exclusively by Oceana Publications, 1973.