Citações do registo
Citação norma APA
Goel, S. L. (2000). Distance education in the 21st century.
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Citação norma Chicago
Goel, S. L. Distance Education in the 21st Century. Distance education in the 21st century, 2000.
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Citação norma MLA
Goel, S. L. Distance Education in the 21st Century. 2000.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.