Vorlage:Pratt et al., 1990

• Pratt Jr., H.L., Gruber, S.H. & Taniuchi, T. (eds.) 1990. Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries. NOAA (National Oceanic and Atmospheric Administration) Technical Report NMFS (National Marine Fisheries Service), No. 90.