Tohutoro APA (7th ed.)
BUTTERFIELD, S. (1993). LEAST RESTRICTIVE ENVIRONMENT: A RESPONSE TO DECKER.
Tohutoru Kātū Chicago (17th ed.)
BUTTERFIELD, S.A. LEAST RESTRICTIVE ENVIRONMENT: A RESPONSE TO DECKER. 1993.
Tohutoro MLA (9th ed.)
BUTTERFIELD, S.A. LEAST RESTRICTIVE ENVIRONMENT: A RESPONSE TO DECKER. 1993.
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