References
- Freud , A. 1965 . Normality and Pathology in Childhood: Assessments of Development , New York : Int. Univ. Press .
- Keats , J. 1962 . “ Letter to George and Tom Keats ” . In Keats: Poems and Selected Letters , Edited by: Carlos , Baker . 408 New York : Charles Scribner's Sons . 1817