APA (7th ed.) Citation

Kelz, H. P. (1978). Language development in Germany: The evolution and standardization of the German language. Institute of National Language.

Chicago Style (17th ed.) Citation

Kelz, Heinrich P. Language Development in Germany: The Evolution and Standardization of the German Language. Manila: Institute of National Language, 1978.

MLA (9th ed.) Citation

Kelz, Heinrich P. Language Development in Germany: The Evolution and Standardization of the German Language. Institute of National Language, 1978.