APA (7th ed.) Citation

Appenzeller, I. (1975). Lower limits for the interstellar reddening at the galactic poles. Astronomy and astrophysics, 38(2), .

Chicago Style (17th ed.) Citation

Appenzeller, Immo. "Lower Limits for the Interstellar Reddening at the Galactic Poles." Astronomy and Astrophysics 38, no. 2 (1975).

MLA (9th ed.) Citation

Appenzeller, Immo. "Lower Limits for the Interstellar Reddening at the Galactic Poles." Astronomy and Astrophysics, vol. 38, no. 2, 1975.