APA (7th ed.) Citation

Enid Blyton. (2004). The dumpy wizard's party & the goblin who stole sweets. Mercury books Publishers.

Chicago Style (17th ed.) Citation

Enid Blyton. The Dumpy Wizard's Party & the Goblin Who Stole Sweets. London: Mercury books Publishers, 2004.

MLA (9th ed.) Citation

Enid Blyton. The Dumpy Wizard's Party & the Goblin Who Stole Sweets. Mercury books Publishers, 2004.

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