Gaya APA

Books, L., Johnson, R. (2013). The wizard of Oz : Read it yourself with Ladybird level 4 (Jil. 4). London: Ladybird Books Ltd.

Gaya MLA

Books, Ladybird., Johnson, Richard. "The wizard of Oz : Read it yourself with Ladybird level 4". Jil. 4 London: Ladybird Books Ltd, 2013. Text.