APA (7th ed.) Citation

Gruenwald, O. (1989). Why a "Journal of Interdisciplinary Studies"? Journal of interdisciplinary studies, 1(1/2), 1.

Chicago Style (17th ed.) Citation

Gruenwald, Oskar. "Why a "Journal of Interdisciplinary Studies"?" Journal of Interdisciplinary Studies 1, no. 1/2 (1989): 1.

MLA (8th ed.) Citation

Gruenwald, Oskar. "Why a "Journal of Interdisciplinary Studies"?" Journal of Interdisciplinary Studies, vol. 1, no. 1/2, 1989, p. 1.