Palliser, R. Starting out: d-pawn attacks, The Colle-Zukertort, Barry
Palliser, R. Starting out: d-pawn attacks, The Colle-Zukertort, Barry and 150 attacks, Everyman, 2008, 272 p
Palliser, R. Starting out: d-pawn attacks, The Colle-Zukertort, Barry and 150 attacks, Everyman, 2008, 272 p