APA

Earl Boyd, . (1963). Groups and Fields. A programmed unit in modern mathema tics. New York: McGraw-Hill.

Chicago

Earl Boyd, . 1963. Groups and Fields. A programmed unit in modern mathema tics. New York: McGraw-Hill.

Harvard

Earl Boyd, . (1963). Groups and Fields. A programmed unit in modern mathema tics. New York: McGraw-Hill.

MLA

Earl Boyd, . Groups and Fields. A programmed unit in modern mathema tics. New York: McGraw-Hill. 1963.