Datoteka:Tchaikovsky by Reutlinger.jpgTchaikovsky, Modeste (2004) [1906] The Life and Letters of Peter Ilich Tchaikovsky, The Minerva Group, pp. p. 283 Retrieved on 27 March 2009. ISBN: 1410216128
Datoteka:Tchai1.jpgTchaikovsky, Modeste (2004) [1906] The Life and Letters of Peter Ilich Tchaikovsky, The Minerva Group, pp. p. 283 Retrieved on 27 March 2009. ISBN: 1410216128
Datoteka:Pyotr Ilyich Tchaikovsky.jpgDescriptionPyotr Ilyich Tchaikovsky.jpg English: Photo of Pyotr Ilyich Tchaikovsky Date circa 1875 date QS:P,+1875-00-00T00:00:00Z/9,P1480,Q5727902 Source