Roberts, R. (2007). Learn-O-Grams: Pictorial puzzles to warm up, wind down, and energize learning. San Francisco: Wiley.
Chicago-стиль цитированияRoberts, Ron. Learn-O-Grams: Pictorial Puzzles to Warm Up, Wind Down, and Energize Learning. San Francisco: Wiley, 2007.
MLA-цитированиеRoberts, Ron. Learn-O-Grams: Pictorial Puzzles to Warm Up, Wind Down, and Energize Learning. San Francisco: Wiley, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.