The entrepreneur's master planning guide : how to launch a successful business / John A. Welsh, Jerry F. White. Welsh, John A., 1925- White, Jerry F. New business enterprises. Entrepreneurship. HD62.5 .W45 1983 658.42 WEE "A Spectrum book." Includes bibliographical references and index. Englewood Cliffs, N.J. : Prentice-Hall, c1983. c1983. 1983 Text viii, 408 p. ; eng