The Token economy
Ayllon, Teodoro
The Token economy - New York : Appleton -Century Crafts, 1968. - viii, 288 p. ; 21 cm. - The century psychology series .
Human behaviour- Institutions
615.851 AYL
The Token economy - New York : Appleton -Century Crafts, 1968. - viii, 288 p. ; 21 cm. - The century psychology series .
Human behaviour- Institutions
615.851 AYL