Sources

The World Book Dictionary, volume A- K, volume L-Z, A Thorndike - Barnhart Dictionary, 1994 World Book, printed in the USA

Advanced Language Practice; Michael Vince Macmillan Publishers Limited 1998, printed in Hong Kong.

Oxford Advanced Learner's Dictionary, Oxford University Press, 1992, printed in Great Britain by BPCC Hazells Ltd Member of BPCC Ltd.

The Oxford Duden Pictorial English Dictionary, Russky Yazyk Publishers, Moscow 1998.

Nicholas Brownlees, Giuliana Bernardi Fici, Hit the Mark!, Valmartina, Petrini editore -Torino 1995, printed in Italy.

Germana Moech D'Agostino. Voices from the British and American World. Past and Present. A language improvement course for upper-intermediate students. With the collaboration of Anne Hanley. Mursia, 1995.

Maria Gabriella Bassi, Mariella Cesareni, Jennifer Pearson. Discovery. A themtic approach to modular learning.Atlas, 2000.

Mario Rivonlucri, Grammar Games, Cambridge University Press, 1993.

Mario Rivonlucri and Paul Davis, More Grammar Games, Cambridge University Press, 1995

R.O'Neill, English in Situations, Oxford University Press, 1972.

Amanda Wade from "Current"

Amanda Wade from "Reader's Digest"

Amanda Wade from "Crown"

Michael McCarthy, Felicity O'Dell. English Vocabulary in Use. Upper-intermadiate & advanced. Cambridge University Press, 2001