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J. I. Menzies, Joanna Tippett, Chromosome Numbers of Papuan Hylid Frogs and the Karyotype of Litoria infrafrenata (Amphibia, Anura, Hylidae), Journal of Herpetology, Vol. 10, No. 3 (Jul. 26, 1976), pp. 167-173
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Menzies et al. (1976) studied this question.
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