Gibson, I. A., & Rogers, G. C. (1977). Gippsland regional environmental study: resource-based recreation in the Gippsland lakes catchment area: Final report. [Ministry for Conservation].
Citace podle Chicago (17th ed.)Gibson, Ian A., a G. C. Rogers. Gippsland Regional Environmental Study: Resource-based Recreation in the Gippsland Lakes Catchment Area: Final Report. [Melbourne]: [Ministry for Conservation], 1977.
Citace podle MLA (8th ed.)Gibson, Ian A., a G. C. Rogers. Gippsland Regional Environmental Study: Resource-based Recreation in the Gippsland Lakes Catchment Area: Final Report. [Ministry for Conservation], 1977.
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