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].
Citazione stile Chigago Style (17a edizione)Gibson, Ian A., e G. C. Rogers. Gippsland Regional Environmental Study: Resource-based Recreation in the Gippsland Lakes Catchment Area: Final Report. [Melbourne]: [Ministry for Conservation], 1977.
Citatione MLA (8a ed.)Gibson, Ian A., e G. C. Rogers. Gippsland Regional Environmental Study: Resource-based Recreation in the Gippsland Lakes Catchment Area: Final Report. [Ministry for Conservation], 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.