Play therapy has a base from the therapies listed below.

PSYCHOANALYTIC PLAY THERAPY
Anna Freud (1928); Melanie Klien (1932)

RELEASE PLAY THERAPIES and STRUCTURED PLAY THERAPIES
Levy (1938); Solman (1938); Hambridge (1955)

RELATIONSHIP/CLIENT CENTERED THERAPIES
Otto Rank (1936); Jessie Taft (1933); Frederick Allen (1942);Clark Moustakas (1959); Carl Rogers; Bixler (1949);Virginia Axline (1947); Landreth (1991)

BEHAVIOUR PLAY THERAPY
O'Connor (1991)

GESTALT
Violet Oaklander (1969)

JUNGIAN
Allan (1988); Kalf (1980); Weinrib (1983)

FILIAL THERAPY
Guerney (1964); Landreth (1991)

THERAPLAY
Jernberg (1979)

Books
Axline, V. (1947) - Play Therapy. Boston: Houghton-Mifflin.
One of the classics of child therapy. Although almost a half century old, this remains a highly relevant study as we approach the twenty first century. The book is full of love and respect for children.
Bedard-Bidwell, Betty and Sippel, Margaret (1997) - Hand in Hand, A practical application of Art and Play Therapy
Gil, Eliana.(1991) - The Healing Power of Play
Greene, Ross W. (2001) - The Explosive Child
James, Beverly (1989) - Treating Truamatized Children
James, Beverly (1984) - Handbook for Treatment of Atttachment-Trauma Problems in Children
Kaduson, Heidi and Schaefer, Charles (2000) - Sort Term Play Therapy for Children
Kraft and Landreth. (1998) - Parents as Therapeutic Partners
Lowenstein (1999) - Creative Interventions for Troubled Children
Lowenstein (1998) - Paper Dolls and Paper Airplanes
Lubimiv, G. (1984) - Wings for Our Children. Burnstown, Ontario: General Store Publishing
Oaklander, V. (1988) - Windows to Our Children
Papolos, Demitiri and Papolos, Janice (1999) - The Bipolar Child
Sudsberry, Richard (2001) - Relationship Parenting
VanFleet, Rise. (1994) - Filial Therapy: Strengthening Parent-Child Relationships Through Play.