Cita APA (7th ed.)

Friedländer, M. J., & Braam, F. A. v. (1950). World collectors annuary. Brouwer.

Cita Chicago (17th ed.)

Friedländer, Max J., i Fred A. von Braam. World Collectors Annuary. Delft: Brouwer, 1950.

Cita MLA (8th ed.)

Friedländer, Max J., i Fred A. von Braam. World Collectors Annuary. Brouwer, 1950.