APA Edition Citation

Butler, A. J. T., & Ratzel, F. (1989). The History of mankind.

Chicago Edition Citation

Butler, A J; Tr, and Freidrich Ratzel. The History of Mankind. New Delhi, Akashdeep Publishing, 1989.

MLA Edition Citation

Butler, A J; Tr, and Freidrich Ratzel. The History of Mankind. 1989.

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