Gibson, H. N. The Shakespeare claimants a critical survey of the four principal theories concerning the authorship of the Shakespearean plays. - New York Barnes & Noble [1962] - 320 p. illus. 23cm. Includes bibilography. LCCN: 62005964 Subjects--Personal Names: Shakespeare, William, 1564-1616 --Authorship. LC Class. No.: PR2937 / .G5 Dewey Class. No.: 822.33