APA
Petrillo M., Sanger S., . (1972). Emotional care of hospitalized children. Toronto: J. B. Lippincott.
Chicago
Petrillo Madeline, Sanger Sirgay, . 1972. Emotional care of hospitalized children. Toronto: J. B. Lippincott.
Harvard
Petrillo M., Sanger S., . (1972). Emotional care of hospitalized children. Toronto: J. B. Lippincott.
MLA
Petrillo Madeline, Sanger Sirgay, . Emotional care of hospitalized children. Toronto: J. B. Lippincott. 1972.