APA
Barker S. F., . (1985). The elements of logic. - Fifth edition. New York ; St. Louis ; San Francisco: McGraw-Hill Book Company.
Chicago
Barker Stephen F, . 1985. The elements of logic. - Fifth edition. New York ; St. Louis ; San Francisco: McGraw-Hill Book Company.
Harvard
Barker S. F., . (1985). The elements of logic. - Fifth edition. New York ; St. Louis ; San Francisco: McGraw-Hill Book Company.
MLA
Barker Stephen F, . The elements of logic. - Fifth edition. New York ; St. Louis ; San Francisco: McGraw-Hill Book Company. 1985.
