Galilei, G. (1954). Dialogues concerning two sciences. Dover.
Cita Chicago Style (17a ed.)Galilei, Galileo. Dialogues Concerning Two Sciences. New York, Estados Unidos: Dover, 1954.
Cita MLA (9a ed.)Galilei, Galileo. Dialogues Concerning Two Sciences. Dover, 1954.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
      
 