Cita APA (7a ed.)

Erhardt, L., & Aleksandrowicz, J. (1975). Music in Poland. Interpress.

Cita Chicago Style (17a ed.)

Erhardt, Ludwik, y Jan Aleksandrowicz. Music in Poland. Warsaw: Interpress, 1975.

Cita MLA (9a ed.)

Erhardt, Ludwik, y Jan Aleksandrowicz. Music in Poland. Interpress, 1975.