APA

Roberts J. . M., . (1976). The Hutchinson History of the world. London: Hutchinson.

Chicago

Roberts J M, . 1976. The Hutchinson History of the world. London: Hutchinson.

Harvard

Roberts J. . M., . (1976). The Hutchinson History of the world. London: Hutchinson.

MLA

Roberts J M, . The Hutchinson History of the world. London: Hutchinson. 1976.