APA (7th ed.) Citation

Haas, O. (1949). Catalogues. Otto Haas.

Chicago Style (17th ed.) Citation

Haas, Otto. Catalogues. London: Otto Haas, 1949.

MLA (9th ed.) Citation

Haas, Otto. Catalogues. Otto Haas, 1949.

Warning: These citations may not always be 100% accurate.