APA (7th ed.) Citation

Handl, J., & Skei, A. B. (1970). XX. Gaudia principium. A-R Editions, Inc.

Chicago Style (17th ed.) Citation

Handl, Jacob, and Allen B. Skei. XX. Gaudia Principium. A-R Editions, Inc, 1970.

MLA (9th ed.) Citation

Handl, Jacob, and Allen B. Skei. XX. Gaudia Principium. A-R Editions, Inc, 1970.