APA Style

Petzold, C, 1. (2008). The annotated Turing : a guided tour through Alan Turing's historic paper on computability and the Turing machine . Canada: John Wiley & Sons.

MLA Style

Petzold, Charles,, 1953-. "The annotated Turing : a guided tour through Alan Turing's historic paper on computability and the Turing machine". Canada: John Wiley & Sons, 2008. Text.