APA (7th ed.) Citation

Beck, C., & Beck, C. (1932). Vier Frauenchöre a cappella. B. Schott's Söhne.

Chicago Style (17th ed.) Citation

Beck, Conrad, and Conrad Beck. Vier Frauenchöre a Cappella. Mainz: B. Schott's Söhne, 1932.

MLA (9th ed.) Citation

Beck, Conrad, and Conrad Beck. Vier Frauenchöre a Cappella. B. Schott's Söhne, 1932.

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