The opal industry in Australia.
Series: Australia. Bureau of Mineral Resources, Geology and Geophysics.; Bulletin no. 17; Bulletin (Australia. Bureau of Mineral Resources, Geology and Geophysics),; no. 17.
Published: 1950
Place of publication: [Canberra ?]
Language: eng
Number of pages: 47
Subjects: Opals.
Notes: Bibliography: p. 42.