Day, J., & Keyes, C. W. (1956). Tax documents from Theadelphia: Papyri of the second century A.D. Columbia University Press.
Chicago Style (17th ed.) CitationDay, John, and Clinton Walker Keyes. Tax Documents from Theadelphia: Papyri of the Second Century A.D. New York: Columbia University Press, 1956.
MLA (9th ed.) CitationDay, John, and Clinton Walker Keyes. Tax Documents from Theadelphia: Papyri of the Second Century A.D. Columbia University Press, 1956.
Warning: These citations may not always be 100% accurate.