Chopin, F., & Schmidt, R. (1977). Rudolph Schmidt spielt Chopin.
Chicago Style (17th ed.) CitationChopin, Frédéric, and Rudolf Schmidt. Rudolph Schmidt Spielt Chopin. <<[S.l.]>>, 1977.
MLA (9th ed.) CitationChopin, Frédéric, and Rudolf Schmidt. Rudolph Schmidt Spielt Chopin. 1977.
Warning: These citations may not always be 100% accurate.