'Beating the Queens Gambit'
This book advocates the 1.d4 Nf6 2.c4 e6 3.Nf3 d5 move order for Black with 3.Nc3 Bb4 having been covered in the sister volume Playing the Nimzo-Indian. By waiting for the knight to appear on f3 before transposing to a Queens Gambit, Black reduces Whites