APA (7th ed.) Citation

Huggett, A. J., & Clifford, J. M. (1950). Professional problems of teaching. s. n.

Chicago Style (17th ed.) Citation

Huggett, Albert John, and John M. Clifford. Professional Problems of Teaching. [Lansingn Mich: s. n, 1950.

MLA (9th ed.) Citation

Huggett, Albert John, and John M. Clifford. Professional Problems of Teaching. s. n, 1950.