APA Style

Marian, B. et al (2012). Practice Tests for IGCSE English as a Second Languange: Reading and Writing Book 1 With Key (2nd edition). UK: Cambridge University Press.

MLA Style

Marian, Barry. et al. "Practice Tests for IGCSE English as a Second Languange: Reading and Writing Book 1 With Key". 2nd edition UK: Cambridge University Press, 2012. Textbook.