Fredette, R. H., & Siessor, J. (2007). The sky on fire: The first battle of Britain, 1917-1918. The University of Alabama Press.
Dyfyniad Arddull ChicagoFredette, Raymond H., and John Siessor. The Sky on Fire: The First Battle of Britain, 1917-1918. Tuscaloosa, Alabama: The University of Alabama Press, 2007.
Dyfyniad MLAFredette, Raymond H., and John Siessor. The Sky on Fire: The First Battle of Britain, 1917-1918. The University of Alabama Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.