Clarke, A. C. (1988). 2061: Odyssey three. A Del Rey Books.
Cita Chicago Style (17a ed.)Clarke, Arthur C. 2061: Odyssey Three. New York: A Del Rey Books, 1988.
Cita MLA (9a ed.)Clarke, Arthur C. 2061: Odyssey Three. A Del Rey Books, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.