Schnitzler, T. (1975). Die O-Antiphonen. Heiliger Dienst, 29(4), 145-154.
Chicago Style (17th ed.) CitationSchnitzler, Theodor. "Die O-Antiphonen." Heiliger Dienst 29, no. 4 (1975): 145-154.
MLA (9th ed.) CitationSchnitzler, Theodor. "Die O-Antiphonen." Heiliger Dienst, vol. 29, no. 4, 1975, pp. 145-154.
Warning: These citations may not always be 100% accurate.