Roberts, R. (2007). Learn-O-Grams: Pictorial puzzles to warm up, wind down, and energize learning. San Francisco: Wiley.
Chicago ZitierstilRoberts, Ron. Learn-O-Grams: Pictorial Puzzles to Warm Up, Wind Down, and Energize Learning. San Francisco: Wiley, 2007.
MLA ZitierstilRoberts, Ron. Learn-O-Grams: Pictorial Puzzles to Warm Up, Wind Down, and Energize Learning. San Francisco: Wiley, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.