APA (7th ed.) Citation

Murray, W., & Wingfield, J. 12c: The open door to reading. Ladybird.

Chicago Style (17th ed.) Citation

Murray, W., and J.H Wingfield. 12c: The Open Door to Reading. London: Ladybird.

MLA (9th ed.) Citation

Murray, W., and J.H Wingfield. 12c: The Open Door to Reading. Ladybird.

Warning: These citations may not always be 100% accurate.