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Dyfyniad Arddull ChicagoFisher, J., L. Trulio, G. Biging, and D. Chromczak. An Analysis of Spatial Clustering and Implications for Wildlife Management: A Burrowing Owl Example. Springer Verlag, 2007.
Dyfyniad MLAFisher, J., et al. An Analysis of Spatial Clustering and Implications for Wildlife Management: A Burrowing Owl Example. Springer Verlag, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.