| |||
национальный фонд сна ("National Sleep Foundation" and the other marks listed below are federally-registered trademarks of the National Sleep Foundation and are used here with permission from the National Sleep Foundation. sleepfoundation.org Demidov_Evgeny); Американский Национальный Фонд по проблемам сна (Dorian Roman) | |||
Английский тезаурус | |||
| |||
NSF |