APA (7th ed.) Citation

Kifinger, G. (1931). Häfner, Otto, Firmungsbüchlein. Katechetische Blätter, 57(4), 222.

Chicago Style (17th ed.) Citation

Kifinger, Georg. "Häfner, Otto, Firmungsbüchlein." Katechetische Blätter 57, no. 4 (1931): 222.

MLA (9th ed.) Citation

Kifinger, Georg. "Häfner, Otto, Firmungsbüchlein." Katechetische Blätter, vol. 57, no. 4, 1931, p. 222.

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