APA Edition Citation

Bruun, G., & Mamatey, V. S. (1967). World in the twentieth century (5th ed.). D C Heath & Co.

Chicago Edition Citation

Bruun, Geoffrey, and Victor S. Mamatey. World in the Twentieth Century. 5th ed. Lexington: D C Heath & Co, 1967.

MLA Edition Citation

Bruun, Geoffrey, and Victor S. Mamatey. World in the Twentieth Century. 5th ed. D C Heath & Co, 1967.