Freeman-Grenville, G. S. P. (1978). Chronology of world history: A calendar of principal events from 3000 BC to AD 1976 (2. ed.). Collings.
Chicago-Zitierstil (17. Ausg.)Freeman-Grenville, G. S. P. Chronology of World History: A Calendar of Principal Events from 3000 BC to AD 1976. 2. ed. London: Collings, 1978.
MLA-Zitierstil (9. Ausg.)Freeman-Grenville, G. S. P. Chronology of World History: A Calendar of Principal Events from 3000 BC to AD 1976. 2. ed. Collings, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.