| Answer | Crossword Clue |
|---|---|
| ENGELS | Co-author of "The Communist Manifesto" |
| KARLMARX | "The Communist Manifesto" co-author |
| ENGELS | "The Communist Manifesto" co-author |
| ENGELS | "Communist Manifesto" co-author |
| KARL | "Communist Manifesto" co-author Marx |
| KARL | "The Communist Manifesto" author Marx |
