Bjerrum, K. B. (2000). Primary Sjogren's syndrome and keratoconjunctivitis sicca: Diagnostic methods, frequency and social disease aspects. Munksgaard.
Cita Chicago Style (17a ed.)Bjerrum, Kirsten Birgitte. Primary Sjogren's Syndrome and Keratoconjunctivitis Sicca: Diagnostic Methods, Frequency and Social Disease Aspects. Copenhagen: Munksgaard, 2000.
Cita MLA (8a ed.)Bjerrum, Kirsten Birgitte. Primary Sjogren's Syndrome and Keratoconjunctivitis Sicca: Diagnostic Methods, Frequency and Social Disease Aspects. Munksgaard, 2000.
Precaución: Estas citas no son 100% exactas.