2 1 20 Report on geochemical and geological reconnaissance survey block 4, Sulawesi Tengah ( September '74 - May '75) Aspinall, Clive Primary Author Large, D. E. Primary Author Hutagalung, J. Primary Author Jeffery, R. G. Primary Author Sutoyo Primary Author Syaiful, A. Primary Author Dedi, A. Primary Author Thamrin, C. Primary Author Made, W. Primary Author mixed material PT. Riotinto Bethlehem Indonesia 1975 Laporan kegiatan untuk September -October - November 1974 pada Block 4, Sulawesi Tengah Indonesia Aspinall, Clive Primary Author Syaiful, A. Primary Author Dedi, A. Primary Author mixed material PT Rio Tinto Indonesia 1974