Citação norma APA
Herr, T., & Johnson, K. (1994). Problem solving strategies: Crossing the river with dogs : and other mathematical adventures. Key Curriculum Press.
Citação norma Chicago
Herr, Ted, and Ken Johnson. Problem Solving Strategies: Crossing the River with Dogs : And Other Mathematical Adventures. Berkeley, Calif.: Key Curriculum Press, 1994.
Citação norma MLA
Herr, Ted, and Ken Johnson. Problem Solving Strategies: Crossing the River with Dogs : And Other Mathematical Adventures. Key Curriculum Press, 1994.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.