TY - BOOK AU - Keohane,Georgia Levenson TI - Social entrepreneurship for the 21st century: innovation across the nonprofit, private, and public sectors SN - 0071801677 (alk. paper) AV - HD60 .K4823 2013 U1 - 658.4/08 23 PY - 2013/// CY - New York PB - McGraw-Hill KW - Social entrepreneurship N1 - Includes bibliographical references and index ER -