APA (7e ed.) Bronvermelding

Petrillo, M., & Sanger, S. (1972). Emotional care of hospitalized children: An environmental approach. Lippincott.

Chicago (17e ed.) Bronvermelding

Petrillo, Madeline, en Sirgay Sanger. Emotional Care of Hospitalized Children: An Environmental Approach. Philadelphia: Lippincott, 1972.

MLA (8e ed.) Bronvermelding

Petrillo, Madeline, en Sirgay Sanger. Emotional Care of Hospitalized Children: An Environmental Approach. Lippincott, 1972.