Gaya APA

Lucantoni, P., Kellas, L. (2022). Cambridge IGCSE English as a Second Language (Workbook) (Sixth Edition). United Kingdom: Cambridge University Press.

Gaya MLA

Lucantoni, Peter., Kellas, Lydia. "Cambridge IGCSE English as a Second Language (Workbook)". Sixth Edition United Kingdom: Cambridge University Press, 2022. Text.