APA (7th ed.) Citation

Walter de Gruyter & Co. (1961). Verlags-Katalog.

Chicago Style (17th ed.) Citation

Walter de Gruyter & Co. Verlags-Katalog. Berlin, 1961.

MLA (9th ed.) Citation

Walter de Gruyter & Co. Verlags-Katalog. 1961.

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