ebrary, Inc, Hayes, C. D., Palmer, J. L., & Zaslow, M. J. (1990). Who cares for America's children?: Child care policy for the 1990s. National Academy Press.

ebrary, Inc, Cheryl D. Hayes, John Logan Palmer, and Martha J. Zaslow. Who Cares for America's Children?: Child Care Policy for the 1990s. Washington, D.C.: National Academy Press, 1990.

ebrary, Inc, et al. Who Cares for America's Children?: Child Care Policy for the 1990s. National Academy Press, 1990.