Não informado. (1974). Annual Index of Rheumatology. American Rheumatism Association.
Chicagoスタイル(17版)引用形式Não informado. Annual Index of Rheumatology. New York: American Rheumatism Association, 1974.
MLA(8版)引用形式Não informado. Annual Index of Rheumatology. American Rheumatism Association, 1974.
警告: この引用は必ずしも正確ではありません.