Blalock, Hubert M. An Introduction to social research / Hubert M. Blalock - New Jersey : Prentice-Hall , 1970 - 120p. : ill. ; 21 cm. Includes bibliographical references and index. ISBN: 13496828 Subjects--Topical Terms: ResearchResearch and developmentSocial sciences Dewey Class. No.: 007 / BLA