Cita APA (7a ed.)
Sommerhalder, R., & Westrhenen, S. v. (1988). The Theory of Computability: Programs, Machines, Effectiveness and Feasibility.
Cita estilo Chicago (17a ed.)
Sommerhalder, R., y S.C. van Westrhenen. The Theory of Computability: Programs, Machines, Effectiveness and Feasibility. 1988.
Cita MLA (9a ed.)
Sommerhalder, R., y S.C. van Westrhenen. The Theory of Computability: Programs, Machines, Effectiveness and Feasibility. 1988.
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