The American Dream
Bruck, Peter

The Ratification of the Constitutin
Schrag

Langenscheidts Grammatiktafel Engli

Business Objectives
Hollett, Vicki

Dictionary of New English 1963-1972
Barnhart

Guided Course in English Compositin
Jupp/Milne

Vocabulary in Use
McCarthy, Michael u.a.

Situational Grammar Practice

Teste dein English
Broughton

Visual Dictionary
Merriam-Webster's