statistiska centralbyran. (1989). statistical abstract of sweden 1990: Sveriges officiella statistik. statistics of sweden.
Chicagoスタイル(17版)引用形式statistiska centralbyran. Statistical Abstract of Sweden 1990: Sveriges Officiella Statistik. sweden: statistics of sweden, 1989.
MLA(9版)引用形式statistiska centralbyran. Statistical Abstract of Sweden 1990: Sveriges Officiella Statistik. statistics of sweden, 1989.
警告: この引用は必ずしも正確ではありません.