APA (7th ed.) Citation

Helm, C. E. (1879). Muolo the monkey, or, The missing link: A farce in one act. Happy Hours.

Chicago Style (17th ed.) Citation

Helm, Charles E. Muolo the Monkey, or, The Missing Link: A Farce in One Act. New York: Happy Hours, 1879.

MLA (8th ed.) Citation

Helm, Charles E. Muolo the Monkey, or, The Missing Link: A Farce in One Act. Happy Hours, 1879.