APA Style
Lydia, K., Peter, L. (2012).
International English: Workbook 1 (COPY 1) (1st edition).
London:
Hodder Education.
MLA Style
Lydia, Kellas., Peter, Lucantoni.
"International English: Workbook 1 (COPY 1)".
1st edition
London:
Hodder Education,
2012.
Reference.