APA (7th ed.) Citation

Hughes, M. (1995). The crystal drop / Monica Hughes. Heinemann New Windmills.

Chicago Style (17th ed.) Citation

Hughes, Monica. The Crystal Drop / Monica Hughes. Oxford: Heinemann New Windmills, 1995.

MLA (9th ed.) Citation

Hughes, Monica. The Crystal Drop / Monica Hughes. Heinemann New Windmills, 1995.

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