APA

Barker S. F., . (1975). The elements of logic. New York: McGraw-Hill.

Chicago

Barker Stephen Francis, . 1975. The elements of logic. New York: McGraw-Hill.

Harvard

Barker S. F., . (1975). The elements of logic. New York: McGraw-Hill.

MLA

Barker Stephen Francis, . The elements of logic. New York: McGraw-Hill. 1975.