APA (7th ed.) Citation

GUEST, LAWRENCE, & ESHUYS. (1990). World war 1: Causes, course & consequenes. Mac Millan.

Chicago Style (17th ed.) Citation

GUEST, LAWRENCE, and ESHUYS. World War 1: Causes, Course & Consequenes. Melbourne: Mac Millan, 1990.

MLA (8th ed.) Citation

GUEST, et al. World War 1: Causes, Course & Consequenes. Mac Millan, 1990.