(2019). Caring for our children: National health and safety performance standards, guidelines for early care, and education programs (Fourth edition.). Washington, DC : Itasca, IL : Aurora, CO: APHA Press, imprint of American Public Health Association ; American Academy of Pediatrics ; National Resource Center for Health and Safety in Child Care and Early Education.

Caring for Our Children: National Health and Safety Performance Standards, Guidelines for Early Care, and Education Programs. Fourth edition. Washington, DC : Itasca, IL : Aurora, CO: APHA Press, imprint of American Public Health Association ; American Academy of Pediatrics ; National Resource Center for Health and Safety in Child Care and Early Education, 2019.

Caring for Our Children: National Health and Safety Performance Standards, Guidelines for Early Care, and Education Programs. Fourth edition. Washington, DC : Itasca, IL : Aurora, CO: APHA Press, imprint of American Public Health Association ; American Academy of Pediatrics ; National Resource Center for Health and Safety in Child Care and Early Education, 2019.