Cita APA (7a ed.)
Maine, C. E. Fire Past The Future. Ballantine Books.
Cita estilo Chicago (17a ed.)
Maine, Charles Eric. Fire Past The Future. Nueva York, EUA: Ballantine Books.
Cita MLA (9a ed.)
Maine, Charles Eric. Fire Past The Future. Ballantine Books.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.