APA (7th ed.) Citation

Grylls, B., & McCann, E. (2017). The Sea challenge. Bear Grylls.

Chicago Style (17th ed.) Citation

Grylls, Bear, and Emma McCann. The Sea Challenge. London: Bear Grylls, 2017.

MLA (9th ed.) Citation

Grylls, Bear, and Emma McCann. The Sea Challenge. Bear Grylls, 2017.

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