APA (7th ed.) Citation

Sung, L., Saux, N. L., & Frenkel, V. Diagnosis? Wiley.

Chicago Style (17th ed.) Citation

Sung, Lillian, Nicole Le Saux, and Vivian Frenkel. Diagnosis? Wiley.

MLA (9th ed.) Citation

Sung, Lillian, et al. Diagnosis? Wiley.