Nallasivan, S. Ankylosing spondylitis–Axial spondyloarthritis - 2nd edition. SAGE Publishing.
Chicago Style (17th ed.) CitationNallasivan, Subramanian. Ankylosing Spondylitis–Axial Spondyloarthritis - 2nd Edition. SAGE Publishing.
MLA (9th ed.) CitationNallasivan, Subramanian. Ankylosing Spondylitis–Axial Spondyloarthritis - 2nd Edition. SAGE Publishing.
Warning: These citations may not always be 100% accurate.