APA (7th ed.) Citation

Cochran, E. E. (1950). The experimental didactics of Ernst Otto. de Gruyter.

Chicago Style (17th ed.) Citation

Cochran, Emory E. The Experimental Didactics of Ernst Otto. Berlin: de Gruyter, 1950.

MLA (9th ed.) Citation

Cochran, Emory E. The Experimental Didactics of Ernst Otto. de Gruyter, 1950.