Helman, P., & Veroff, R. (1986). Intermediate problem solving and data structures: Walls and mirrors. Benjamin/Cummings Pub. Co..
Citação norma ChicagoHelman, Paul, and Robert Veroff. Intermediate Problem Solving and Data Structures: Walls and Mirrors. Menlo Park, Calif.: Benjamin/Cummings Pub. Co., 1986.
Citação norma MLAHelman, Paul, and Robert Veroff. Intermediate Problem Solving and Data Structures: Walls and Mirrors. Benjamin/Cummings Pub. Co., 1986.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.