APA Style

Harrison, B. (2021). Cambridge IGCSE and O Level History Core Content Option B 1 : the 20th century : international relation since 1919 : workbook . London: Hodder Education.

MLA Style

Harrison, Benjamin. "Cambridge IGCSE and O Level History Core Content Option B 1 : the 20th century : international relation since 1919 : workbook". London: Hodder Education, 2021. Text.