APA (7th ed.) Citation

Webb, H., & Lindsay, M. (2014). The case of the secret tunnel. Houghton Mifflin Harcourt.

Chicago Style (17th ed.) Citation

Webb, Holly, and Marion Lindsay. The Case of the Secret Tunnel. Boston ; New York: Houghton Mifflin Harcourt, 2014.

MLA (8th ed.) Citation

Webb, Holly, and Marion Lindsay. The Case of the Secret Tunnel. Houghton Mifflin Harcourt, 2014.

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