Perry, John A. (John Ambrose) The Social web : an introduction to sociology / John A. Perry, Erna K. Perry. - 6th ed. - New York : Harper Collins College, c1993. - xii, 512p. : ill. ; 24 cm. Includes bibliographical references. ISBN: 0065012127 Subjects--Topical Terms: Sociology LC Class. No.: HM51 / P42 1993