APA (7th ed.) Citation

Ellis, W. A., Guyles, C. A., Ullman, B. L., Hake, W. H., Milleson, H. K., Wagner, W. T., & Colby, J. K. (1933). Hints for Teachers.

Chicago Style (17th ed.) Citation

Ellis, Willis A., Calla A. Guyles, B. L. Ullman, W. H. Hake, Helen K. Milleson, William T. Wagner, and John Kingsbury Colby. Hints for Teachers. 1933.

MLA (9th ed.) Citation

Ellis, Willis A., et al. Hints for Teachers. 1933.