Cita APA (7a ed.)

Kraner, V., & Kraner, G. (1963). Ex Libris Gerda Kraner.

Cita Chicago Style (17a ed.)

Kraner, Valter, y Gerda Kraner. Ex Libris Gerda Kraner. [S.l, 1963.

Cita MLA (9a ed.)

Kraner, Valter, y Gerda Kraner. Ex Libris Gerda Kraner. 1963.