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.
Čikaški stil citiranja (17. izdanje)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.
MLA način citiranja (8. izdanje)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.
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