György, P. (1901). PETROVAY György THALY Kálmánhoz.
Chicagoスタイル(17版)引用形式György, PETROVAY. PETROVAY György THALY Kálmánhoz. 1901.
MLA(9版)引用形式György, PETROVAY. PETROVAY György THALY Kálmánhoz. 1901.
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APA(7版)引用形式