Heap, Simon. NGOs engaging with business : a world of difference and a difference to the world / Simon Heap. - Oxford : INTRAC, 2000. - 309 p. ; 21 cm. - INTRAC NGO management and policy series ; no. 11 . Includes bibliographical references. ISBN: 1897748531(pbk.) Subjects--Topical Terms: Non-governmental organizations.Economic development.