TY  - BOOK
TI  - A course in experimental psychology: Part 1: Sensation and perception, Chapters 7 to 9
CY  - United States
PB  - D C Heath
UR  - http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqm&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&genre=journal&req_dat=xri:pqil:pq_clntid=50681&svc_dat=xri:pqil:context=title&rft_dat=xri:pqd:PMID=178139
ER  -