APA (7th ed.) Citation

Haas, O. (1956). Recent purchases. Otto Haas.

Chicago Style (17th ed.) Citation

Haas, Otto. Recent Purchases. London: Otto Haas, 1956.

MLA (9th ed.) Citation

Haas, Otto. Recent Purchases. Otto Haas, 1956.

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