Pahlen, K., & Tchaikovsky. (1958). Chaikosvski (1a. ed.). Peuser.

Pahlen, Kurt, and Tchaikovsky. Chaikosvski. 1a. ed. Buenos Aires: Peuser, 1958.

Pahlen, Kurt, and Tchaikovsky. Chaikosvski. 1a. ed. Peuser, 1958.