Schaeper, T. J. (2011). Edward Bancroft: Scientist, author, spy. Yale University Press.
Dyfyniad Arddull ChicagoSchaeper, Thomas J. Edward Bancroft: Scientist, Author, Spy. New Haven [Conn.]: Yale University Press, 2011.
Dyfyniad MLASchaeper, Thomas J. Edward Bancroft: Scientist, Author, Spy. Yale University Press, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.