APA (7th ed.) Citation

Maritsi, D., Kossiva, L., & Vartzelis, G. Williams Syndrome with a “Twist”. Wiley.

Chicago Style (17th ed.) Citation

Maritsi, Despoina, Lydia Kossiva, and George Vartzelis. Williams Syndrome with a “Twist”. Wiley.

MLA (9th ed.) Citation

Maritsi, Despoina, et al. Williams Syndrome with a “Twist”. Wiley.