Gaya APA

Weisman, M, H. (2006). Ankylosing Spondylitis and the Spondyloarthropathies . Philadelphia: Elsevier Mosby.

Gaya MLA

Weisman, Michael, H.. "Ankylosing Spondylitis and the Spondyloarthropathies". Philadelphia: Elsevier Mosby, 2006. Text.