APA (7th ed.) Citation

Friedrich, J. (1960). Grammatik<sup>2</sup>.

Chicago Style (17th ed.) Citation

Friedrich, J. Grammatik<sup>2</sup>. 1960.

MLA (8th ed.) Citation

Friedrich, J. Grammatik<sup>2</sup>. 1960.

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