APA (7th ed.) Citation

Henson, M., & Henson, M. (1999). Folkbeliefs? superstitions? Giraffe Books.

Chicago Style (17th ed.) Citation

Henson, Mari, and Marie Henson. Folkbeliefs? Superstitions? Quezon City: Giraffe Books, 1999.

MLA (9th ed.) Citation

Henson, Mari, and Marie Henson. Folkbeliefs? Superstitions? Giraffe Books, 1999.