Quotation gallery
Good teachers are those who know how little they know. Bad teachers are those who think they know more than they don't know.
R. Verdi
Виртуальные библиографические обзоры
В рубрику "Виртуальные библиографические обзоры" добавлен обзор Алгоритм содружества
03.04.2013
Библиотека
Библиотека