Zikmund, William G. Business research methods / William G. Zikmund. - 4th ed. - Forth Worth, Philadelphia : Harcourt Brace College Pub., c1994. - xxii, 776p. : ill. ; 24 cm. Glossary : p. 738 - 751. Includes bibliographical references. ISBN: 0030975859 Subjects--Topical Terms: Management--Research.Business--Research.