Cita APA (7th ed.)
Amstutz, W., & Herdeg, W. (1955). Bruckmanns Fibelbücher. Bruckmann.
Cita Chicago (17th ed.)
Amstutz, Walter, i Walter Herdeg. Bruckmanns Fibelbücher. München: Bruckmann, 1955.
Cita MLA (9th ed.)
Amstutz, Walter, i Walter Herdeg. Bruckmanns Fibelbücher. Bruckmann, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.