Höhn, C. (1999). "Advising policy-makers in population matters".
Chicagoスタイル(17版)引用形式Höhn, Charlotte. "Advising Policy-makers in Population Matters". Wiesbaden, 1999.
MLA(8版)引用形式Höhn, Charlotte. "Advising Policy-makers in Population Matters". 1999.
警告: この引用は必ずしも正確ではありません.