APA (7th ed.) Citation

Walker, W. E., Greenberger, M., Crenson, M. A., & Crissey, B. L. (1978). A review of models in the policy process. Rand Corporation.

Chicago Style (17th ed.) Citation

Walker, Warren E., Martin Greenberger, Matthew A. Crenson, and Brian L. Crissey. A Review of Models in the Policy Process. Santa Monica, Calif.: Rand Corporation, 1978.

MLA (9th ed.) Citation

Walker, Warren E., et al. A Review of Models in the Policy Process. Rand Corporation, 1978.