Perreault, J. M. (1967). Re-classification: Some warnings and a proposal.
Lua i Stíl Chicago (17ú heag.)Perreault, Jean M. Re-classification: Some Warnings and a Proposal. [Urbana], 1967.
Lua MLA (8ú heag.)Perreault, Jean M. Re-classification: Some Warnings and a Proposal. 1967.
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