Kramer S.N. (1981). History begins art Sumer: Thirty-nine firsts in man's recorded history. The University of Pennsylvania Press.
Chicago Style (17th ed.) CitationKramer S.N. History Begins Art Sumer: Thirty-nine Firsts in Man's Recorded History. Philadelphia: The University of Pennsylvania Press, 1981.
MLA (8th ed.) CitationKramer S.N. History Begins Art Sumer: Thirty-nine Firsts in Man's Recorded History. The University of Pennsylvania Press, 1981.
Warning: These citations may not always be 100% accurate.