(en) Department of Environment and Conservation, 2010–11 Annual Report : Department of Environment and Conservation, Perth, , 120 p. (ISSN1835-114X, lire en ligne), p. 48
(en) Department of Environment and Conservation, 2010–11 Annual Report : Department of Environment and Conservation, Perth, , 120 p. (ISSN1835-114X, lire en ligne), p. 48