Emms, J. (2006). Play the open games as black: What to do when white avoids the Ruy Lopez. Gambit.
Dyfyniad Arddull ChicagoEmms, John. Play the Open Games as Black: What to Do When White Avoids the Ruy Lopez. London: Gambit, 2006.
Dyfyniad MLAEmms, John. Play the Open Games as Black: What to Do When White Avoids the Ruy Lopez. Gambit, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.