Ruppin, P. A. (1981). Areas of zoological significance in the Shire of Portland: Report to the Ministry for Conservation Ecological Survey Co-ordinating Committee. Ministry for Conservation.
Citazione stile Chigago Style (17a edizione)Ruppin, P. A. Areas of Zoological Significance in the Shire of Portland: Report to the Ministry for Conservation Ecological Survey Co-ordinating Committee. [Melbourne?]: Ministry for Conservation, 1981.
Citatione MLA (8a ed.)Ruppin, P. A. Areas of Zoological Significance in the Shire of Portland: Report to the Ministry for Conservation Ecological Survey Co-ordinating Committee. Ministry for Conservation, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.