APA (7th ed.) Citation

Ewen, D. (1947). George Gershwin (1a. ed.). Estuario.

Chicago Style (17th ed.) Citation

Ewen, David. George Gershwin. 1a. ed. Buenos Aires: Estuario, 1947.

MLA (9th ed.) Citation

Ewen, David. George Gershwin. 1a. ed. Estuario, 1947.