APA (7th ed.) Citation

Enid Blyton & Biro, V. (2011). The three strange travellers: And other stories. Award Pub. Ltd.

Chicago Style (17th ed.) Citation

Enid Blyton and Val Biro. The Three Strange Travellers: And Other Stories. Not: Award Pub. Ltd, 2011.

MLA (9th ed.) Citation

Enid Blyton and Val Biro. The Three Strange Travellers: And Other Stories. Award Pub. Ltd, 2011.

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