APA (7e ed.) Bronvermelding

Murray, W., & Aitchison, M. (1978). We like to help. Ladybird Books.

Chicago (17e ed.) Bronvermelding

Murray, William, en Martin Aitchison. We like to Help. Loughborough [England]: Ladybird Books, 1978.

MLA (9e ed.) Bronvermelding

Murray, William, en Martin Aitchison. We like to Help. Ladybird Books, 1978.