Dyfyniad APA

Langfield, S. (2015). Cambridge International AS and A level Computer Science coursebook. Cambridge University Press.

Dyfyniad Arddull Chicago

Langfield, S. Cambridge International AS and A Level Computer Science Coursebook. Cambrige, United Kingdom: Cambridge University Press, 2015.

Dyfyniad MLA

Langfield, S. Cambridge International AS and A Level Computer Science Coursebook. Cambridge University Press, 2015.

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