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