APA Style

Gifford, C., Limited, D, K. (2022). Earth knowledge genius!: a quiz encyclopedia to boost your brain (Ed. 1). London: Dorling Kindersley Limited.

MLA Style

Gifford, Clive., Limited, Dorling, Kindersley. "Earth knowledge genius!: a quiz encyclopedia to boost your brain". Ed. 1 London: Dorling Kindersley Limited, 2022. Text.