APA Style

Porth, C, M. (2006). Pathophysiology : A Concepts of Altered Health States (6th ed). London: Lippincott Williams & Wilkins.

MLA Style

Porth, Carol, Mattson. "Pathophysiology : A Concepts of Altered Health States". 6th ed London: Lippincott Williams & Wilkins, 2006. Text.