Hailperin, M., Kaiser, B., & Knight, K. (1999). Concrete abstractions: An introduction to computer science using scheme. Pacific Grove: Brooks/Cole.
Čikaški stil citiranjaHailperin, Max., Barbara Kaiser, i Karl Knight. Concrete Abstractions: An Introduction to Computer Science Using Scheme. Pacific Grove: Brooks/Cole, 1999.
MLA način citiranjaHailperin, Max., Barbara Kaiser, i Karl Knight. Concrete Abstractions: An Introduction to Computer Science Using Scheme. Pacific Grove: Brooks/Cole, 1999.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.