Sachs, M. Y. (1976). Worldmark encyclopedia of the Nations: A practical guide to the geographic, historical, political, social, & economic status of all nations, their international relationships, and the United Nations system (5th ed.). Worldmark Press John Wiley & Sons.
Citácia podľa Chicago (17th ed.)Sachs, Moshe Y. Worldmark Encyclopedia of the Nations: A Practical Guide to the Geographic, Historical, Political, Social, & Economic Status of All Nations, Their International Relationships, and the United Nations System. 5th ed. New York Toronto: Worldmark Press John Wiley & Sons, 1976.
Citácia podľa MLA (8th ed.)Sachs, Moshe Y. Worldmark Encyclopedia of the Nations: A Practical Guide to the Geographic, Historical, Political, Social, & Economic Status of All Nations, Their International Relationships, and the United Nations System. 5th ed. Worldmark Press John Wiley & Sons, 1976.
