Barker, Stephen F. Instructor's manual to accompany the elements of logic / Stephen F. Barker. - 3rd ed. - New York : McGraw-Hill Book Company, 1980. - iii, 69 p. : ill. ; 23 cm. ISBN: 0070037213 Subjects--Topical Terms: Logic (Reasoning)-- Manual.Logic-- Study and teaching. Dewey Class. No.: 160