Frivaldszky, E. (1825). Monographia serpentum Hungariae.
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Tohutoru Kātū Chicago (17th ed.)
Frivaldszky, Emerich. Monographia Serpentum Hungariae. Pestini, 1825.
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Tohutoro MLA (9th ed.)
Frivaldszky, Emerich. Monographia Serpentum Hungariae. 1825.
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