APA (7th ed.) Citation

Allen, P. (2006). Grandpa and Thomas and the green umbrella (1. publ.). Penguin/Viking.

Chicago Style (17th ed.) Citation

Allen, Pamela. Grandpa and Thomas and the Green Umbrella. 1. publ. Camberwell, Victoria [u.a.]: Penguin/Viking, 2006.

MLA (9th ed.) Citation

Allen, Pamela. Grandpa and Thomas and the Green Umbrella. 1. publ. Penguin/Viking, 2006.