Richards, G. (1989). On psychological language and the physiomorphic basis of human nature. Routledge.
Lua i Stíl Chicago (17ú heag.)Richards, Graham. On Psychological Language and the Physiomorphic Basis of Human Nature. London: Routledge, 1989.
Lua MLA (9ú heag.)Richards, Graham. On Psychological Language and the Physiomorphic Basis of Human Nature. Routledge, 1989.
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