Jalongo 1983, p. 35. Jalongo, Mary Renck (1983). "Using crisis-oriented books with young children". Young Children. 38 (5): 29–36. ISSN0044-0728. JSTOR42643100.
Engel 1982, p. 151. Engel, Rosalind E. (1982). "The status of the family in books for young children: A survey of literature written during the 1970s". Child Welfare. 61 (3): 143–152. ISSN0009-4021. JSTOR45393881.
Jalongo 1983, p. 35. Jalongo, Mary Renck (1983). "Using crisis-oriented books with young children". Young Children. 38 (5): 29–36. ISSN0044-0728. JSTOR42643100.
Engel 1982, p. 151. Engel, Rosalind E. (1982). "The status of the family in books for young children: A survey of literature written during the 1970s". Child Welfare. 61 (3): 143–152. ISSN0009-4021. JSTOR45393881.