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245 _aAn essay on laughter: Its forms, its causes, its development, and its value.
260 _aUnited States
_bLongmans, Green and Co
650 _aPsychology
_920499
856 _uhttp://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=646356
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