Nelson, Stephen G.; Krekorian, C. O'Neil (1976). The dynamics of parental care of Copeina arnoldi (Pisces, Characidae). Behavioral Biology. 17 (4): 507—518. doi:10.1016/S0091-6773(76)90919-6. PMID971199.
Nelson, Stephen G.; Krekorian, C. O'Neil (1976). The dynamics of parental care of Copeina arnoldi (Pisces, Characidae). Behavioral Biology. 17 (4): 507—518. doi:10.1016/S0091-6773(76)90919-6. PMID971199.
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Copella arnoldi. Seriously Fish. Процитовано 22 квітня 2018.