TY - BOOK AU - Block, Zenas. AU - MacMillan, Ian C., TI - Corporate venturing: creating new businesses within the firm SN - 0875843212 (acidfree paper) U1 - 658.1/6 20 PY - 1993/// CY - Boston, Mass. PB - Harvard Business School Press KW - Entrepreneurship KW - New business enterprises N1 - Includes bibliographical references and index ER -