APA (7th ed.) Citation

(1999). Abnormal and clinical psychology: In 19 volumes. Routledge.

Chicago Style (17th ed.) Citation

Abnormal and Clinical Psychology: In 19 Volumes. London: Routledge, 1999.

MLA (9th ed.) Citation

Abnormal and Clinical Psychology: In 19 Volumes. Routledge, 1999.