Glasstone, S. (1965). Source book on the space sciences. Van Nostrand Reinhold Company.
Dyfyniad Arddull ChicagoGlasstone, Samuel. Source Book on the Space Sciences. New Jersey: Van Nostrand Reinhold Company, 1965.
Dyfyniad MLAGlasstone, Samuel. Source Book on the Space Sciences. Van Nostrand Reinhold Company, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.