Chokroverty, S., & Thomas, R. J. Atlas of sleep medicine (Second edition.).
Lua i Stíl Chicago (17ú heag.)Chokroverty, Sudhansu, agus Robert J. Thomas. Atlas of Sleep Medicine. Second edition.
Lua MLA (8ú heag.)Chokroverty, Sudhansu, agus Robert J. Thomas. Atlas of Sleep Medicine. Second edition.
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