Report on the deedborehole drilled on Tweefontein 441 JP (western Transvaal)
By: J.E.J. Martini.
Series: Verslag ;; verslag no. 21=; Report ;; rept. no. 21; Report (Geological Survey (South Africa)) ;; rept. no. 21.
Publisher: Dept. of Mineral and Energy Affairs, Republic of South Africa
Published: 1974
Place of publication: Pretoria
Language: eng
Subjects: Geology -- South Africa -- Transvaal.; Geology, Stratigraphic.; Borings -- South Africa -- Transvaal.
Notes: Includes bibliographical references (leaves 4-5).
Three ill. on folded leaves in pocket.