Cita APA (7a ed.)

National Guild of Piano Teachers & Lindfors, E. A. (1961). Guild musicianship book: Requirements for the irreducible minmum musicianship phases of the National Guild of Piano Teachers Auditions. Summy-Birchard.

Cita Chicago Style (17a ed.)

National Guild of Piano Teachers y Eula Ashworth Lindfors. Guild Musicianship Book: Requirements for the Irreducible Minmum Musicianship Phases of the National Guild of Piano Teachers Auditions. Evanston, Ill: Summy-Birchard, 1961.

Cita MLA (9a ed.)

National Guild of Piano Teachers y Eula Ashworth Lindfors. Guild Musicianship Book: Requirements for the Irreducible Minmum Musicianship Phases of the National Guild of Piano Teachers Auditions. Summy-Birchard, 1961.