TY  - BOOK
AU  - Ayllon,Teodoro
AU  - Azrin,Nathan H.
TI  - The token economy;: A motivational system for therapy and rehabilitation 
PY  - 1968///]
CY  - New York,
PB  - Appleton-Century-Crofts
KW  - Token economy (Psychology)
N1  - Bibliogr.: p. 271-279
ER  -