(2009). Nicolai Podgornov's Graded Pieces for Piano: Nicolai Podgornov. Universal Ed..
Chicagoスタイル(17版)引用形式Nicolai Podgornov's Graded Pieces for Piano: Nicolai Podgornov. Vienna [u.a.]: Universal Ed., 2009.
MLA(8版)引用形式Nicolai Podgornov's Graded Pieces for Piano: Nicolai Podgornov. Universal Ed., 2009.
警告: この引用は必ずしも正確ではありません.