Cita APA (7a ed.)

Riddall-Leech, S. (2009). Heuristic play: Play in the EYFS. Practical Pre-School Books.

Cita Chicago Style (17a ed.)

Riddall-Leech, Sheila. Heuristic Play: Play in the EYFS. London: Practical Pre-School Books, 2009.

Cita MLA (9a ed.)

Riddall-Leech, Sheila. Heuristic Play: Play in the EYFS. Practical Pre-School Books, 2009.