Conn, H. J., Harding, H. A., Kligler, I. J., Frost, W. D., Prucha, M. J., & Atkins, K. N. (1919). Methods of Pure Culture Study: Progress Report for 1918 of the Committee on the Descriptive Chart of the Society of American Bacteriologists.

Conn, H. J., H. A. Harding, I. J. Kligler, W. D. Frost, M. J. Prucha, e K. N. Atkins. Methods of Pure Culture Study: Progress Report for 1918 of the Committee On the Descriptive Chart of the Society of American Bacteriologists. 1919.

Conn, H. J., et al. Methods of Pure Culture Study: Progress Report for 1918 of the Committee On the Descriptive Chart of the Society of American Bacteriologists. 1919.