| References: |
- Deposit:: THE BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON
- Deposit:: MINING ANNUAL REVIEW, 1980, P.465, LONDON
- Deposit:: ECAFE, MINERAL RESOURCES, 32/1968, P.70
- Deposit:: BUSHINSKII, G.T., 1969: OLD PHOSPHORITES OF ASIA AND THEIR GENESIS; ENG. TRANSL. NO.149 BY ISRAELI PROGRAMME FOR SCIENTIFIC TRANSLATION
- Deposit:: TRAN QUOC AN AND NGUYEN DANG KHOA, 1986: PROTEROZOIC AND CAMBRIAN PHOSPHORITES - DEPOSITES: LAO CAI, VIETNAM, IN: COOK, P.J. AND SHERGOLD, J.H., EDITORS: PHOSPHATE DEPOSITS OF THE WORLD, VOL.1, PROTEROZOIC AND CAMBRIAN PHOSPHORITES CAMBRIDGE UNIVERSITY PRESS 1986, P.155-161
|