Dyfyniad APA
Zigler, E., Marsland, K., & Lord, H. (2009). The tragedy of child care in America. Yale University Press.
Dyfyniad Arddull Chicago
Zigler, Edward, Katherine Marsland, and Heather Lord. The Tragedy of Child Care in America. New Haven, Conn.: Yale University Press, 2009.
Dyfyniad MLA
Zigler, Edward, et al. The Tragedy of Child Care in America. Yale University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.