101 substitution tables for students of English: teachers' and advanced students' guide 2026-02-15T19:44:38+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from session cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - George, H. V. (Cambridge U.P., 1967)