Levey, J. S., & Greenhall, A. (1983). The concise columbia encyclopedia. Columbia University Press.
Cita Chicago Style (17a ed.)Levey, Judith S., y Agnes Greenhall. The Concise Columbia Encyclopedia. New York: Columbia University Press, 1983.
Cita MLA (9a ed.)Levey, Judith S., y Agnes Greenhall. The Concise Columbia Encyclopedia. Columbia University Press, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
