APA
Phillips C., . (2009). 50 Puzzles For Lateral Thinking. England: Emerald Publishers.
Chicago
Phillips Charles, . 2009. 50 Puzzles For Lateral Thinking. England: Emerald Publishers.
Harvard
Phillips C., . (2009). 50 Puzzles For Lateral Thinking. England: Emerald Publishers.
MLA
Phillips Charles, . 50 Puzzles For Lateral Thinking. England: Emerald Publishers. 2009.