- Easy Reading Selections In EnglishRobert James Dixson
- Essential idioms in EnglishRobert James Dixson
- Modern American EnglishRobert James Dixson
- Complete course in EnglishRobert James Dixson, J. Andújar
- Exercises in English ConversationRobert James Dixson
- Regents English workbookRobert James Dixson
- Mark Twain's The Adventures of Huckleberry FinnRobert James Dixson
- Exercises in English conversation, Book 1Robert James Dixson
- Handbook of American idioms and idiomatic usageHarold C. Whitford, Robert James Dixson
- Graded exercises in EnglishRobert James Dixson
- Modern American English Series 1Robert James Dixson
- Workbook in Everyday SpanishRobert James Dixson
- Grammar essentialsRobert James Dixson
- Complete Course In English Course, Level 2Robert James Dixson
- Everyday Dialogues in EnglishRobert James Dixson
- Modern American English Level 5Robert James Dixson
- Modern American English 6Robert James Dixson
- Everyday Dialogues in English ; A New Revised EditionRobert James Dixson
- Tests & Drills in English Grammar, Book 2Robert James Dixson
- Resuming Practices De La Gramatica InglesaRobert James Dixson
