APA

Merritt K., . (2008). My first animal numbers. London: Ladybird.

Chicago

Merritt Kate, . 2008. My first animal numbers. London: Ladybird.

Harvard

Merritt K., . (2008). My first animal numbers. London: Ladybird.

MLA

Merritt Kate, . My first animal numbers. London: Ladybird. 2008.