PRODUCT TESTING WITH CONSUMERS FOR RESEARCH GUIDANCE
1989 年出版90 页ISBN：0803112564
OPERATIONS RESEARCH APPLICATIONS AND ALGORITHMS THIRD EDITION
1994 年出版1372 页ISBN：0534209718
THE POLITICAL RESEARCH EXPERIENCE:READINGS AND ANALYSIS
1990 年出版314 页ISBN：0873325184
RESEARCH METHODS FOR SOCIAL WORKERS SECOND EDITION
1996 年出版271 页ISBN：0205157661
Communication Research Strategies and Sources Seventh Edition
2010 年出版315 页ISBN：9780495095880;0495095885
