HAECKEL, E. (1869). HAECKEL, Ernst HALBHERR, Johanneshez.
Chicagoスタイル(17版)引用形式HAECKEL, Ernst. HAECKEL, Ernst HALBHERR, Johanneshez. 1869.
MLA(9版)引用形式HAECKEL, Ernst. HAECKEL, Ernst HALBHERR, Johanneshez. 1869.
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APA(7版)引用形式