APA Style

Langfield, S., Duddell, D. (2020). Computer Science for Cambridge International AS & A Level COURSEBOOK Second edition Digital Access (2nd). Singapore: Cambridge University Press.

MLA Style

Langfield, Sylvia., Duddell, Dave. "Computer Science for Cambridge International AS & A Level COURSEBOOK Second edition Digital Access". 2nd Singapore: Cambridge University Press, 2020. Text.