Gaya APA

Vicary, T., Hedge, T. (1995). Oxford Bookworms [Stage 3]: Chemical Secret (Cet. 6.--). New York: Oxford University Press.

Gaya MLA

Vicary, Tim., Hedge, Tricia. "Oxford Bookworms [Stage 3]: Chemical Secret". Cet. 6.-- New York: Oxford University Press, 1995. Text.