5 1 10 USING THE ENNEGRAM FOR SELF-DISCOVERY (REVISED EDITION) Hudson, Russ Additional Author Riso, Don Richard Primary Author mixed material 0395798671 BOSTON, TEXAS HOUGHTON MIFFLIN CO. 1996 THE PRACTICAL GUIDE TO PERSONALITY TYPES (REVISED EDITION) Hudson, Russ Additional Author Riso, Don Richard Primary Author mixed material 0618004157 BOSTON, TEXAS HOUGHTON MIFFLIN CO. 2000 SEYMOUR, JODY Primary Author mixed material 0817012354 PHILADELPHIA JUDSON PRESS 1995 GOLDBERG, MICHAEL J. Primary Author mixed material 0062513257 NEW YORK, NEW YORK HARPER COLLINS PUBLISHER 1996, 1996 USE THE ENNEAGRAM SYSTEM OF 9 PERSONALITY TYPES DOBSON, THEODORE E. Additional Author HURLEY, KATHLEEN V. Primary Author mixed material 0062504215 NEW YORK, HARPER COLLINS PUB HARPER SAN FRANCISCO 1991, 1997