APA (7th ed.) Citation

Grimm, J., Grimm, W., Kerr, T., & Perry, P. (1947). Roland and Maybird. P. Perry.

Chicago Style (17th ed.) Citation

Grimm, Jacob, Wilhelm Grimm, Tom Kerr, and Powell Perry. Roland and Maybird. London: P. Perry, 1947.

MLA (9th ed.) Citation

Grimm, Jacob, et al. Roland and Maybird. P. Perry, 1947.