CHRISTIE AGATHA. (1970). PASSENGER TO FRANKFURT. HARPER COLLINS PUBLISHERS.
Chicagoスタイル(17版)引用形式CHRISTIE AGATHA. PASSENGER TO FRANKFURT. NEW DELHI: HARPER COLLINS PUBLISHERS, 1970.
MLA(9版)引用形式CHRISTIE AGATHA. PASSENGER TO FRANKFURT. HARPER COLLINS PUBLISHERS, 1970.
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