Piano concertos nos. 20, 21, and 22 with orchestral reduction for second piano - Mozart, Johann Chrysostom Wolfgang Amadeus 1756-1791; Bischoff, Hans 1852-1889.; Kullak, Franz 1844-1913. (New York Dover, 1995)
Originally published separately: New York : G. Schirmer, 1901, in series: Schirmer's library of musical classics.
Keywords: Concertos (Piano) -- 2-piano scores