Knoblauch, H. C., Law, E. M., Meyer, W. P., Beacher, B. F., Nestler, R. B., & White, J. B. S. (1962). State Agricultural Experiment Stations: A history of research policy and procedure. Washington, D. C.: Cooperative State Experiment Station Service, USDA.

Knoblauch, H. C., E. M. Law, W. P. Meyer, B. F. Beacher, R. B. Nestler, and Jr. B. S. White. State Agricultural Experiment Stations: A History of Research Policy and Procedure. Washington, D. C.: Cooperative State Experiment Station Service, USDA, 1962.

Knoblauch, H. C., et al. State Agricultural Experiment Stations: A History of Research Policy and Procedure. Washington, D. C.: Cooperative State Experiment Station Service, USDA, 1962.