APA (7th ed.) Citation

Hudelson, S. (1985). Hopscotch: Course book. Level two. Regents Publishing Company.

Chicago Style (17th ed.) Citation

Hudelson, Sarah. Hopscotch: Course Book. Level Two. Nueva York: Regents Publishing Company, 1985.

MLA (9th ed.) Citation

Hudelson, Sarah. Hopscotch: Course Book. Level Two. Regents Publishing Company, 1985.