APA Edition Citation

Cornwell , R. D. (1969). World history in the twentieth century. Longman.

Chicago Edition Citation

Cornwell , R D. World History in the Twentieth Century. London: Longman, 1969.

MLA Edition Citation

Cornwell , R D. World History in the Twentieth Century. Longman, 1969.

Warning: These citations may not always be 100% accurate.