https://katalog.folkwang-uni.de/Record/56-000226030 Britten, Benjamin:
Concerto for piano and orchestra op. 13 / Benjamin Britten. — [Studienpartitur], rev. 1945.. — London [u.a.] : : Boosey & Hawkes, , c 1967. — 178 S.
(Hawkes pocket scores ; 826)