P Louis. 1970. Contribution géophysique à la Connaissance Géologique du Bassin du Lac Tchad. O.R.S.T.O.M. Mémoire No. 42, 311 pp., 141 figs, 6 coloured pis, 3 maps in separate folder. O.R.S.T.O.M. Paris. Price 220 Frs.

A. T. G.

doi:10.1017/S0016756800039583

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P Louis. 1970. Contribution géophysique à la Connaissance Géologique du Bassin du Lac Tchad. O.R.S.T.O.M. Mémoire No. 42, 311 pp., 141 figs, 6 coloured pis, 3 maps in separate folder. O.R.S.T.O.M. Paris. Price 220 Frs.

Volume 109, Issue 2
A. T. G.
DOI: https://doi.org/10.1017/S0016756800039583

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P Louis. 1970. Contribution géophysique à la Connaissance Géologique du Bassin du Lac Tchad. O.R.S.T.O.M. Mémoire No. 42, 311 pp., 141 figs, 6 coloured pis, 3 maps in separate folder. O.R.S.T.O.M. Paris. Price 220 Frs.

Volume 109, Issue 2
A. T. G.
DOI: https://doi.org/10.1017/S0016756800039583

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

P Louis. 1970. Contribution géophysique à la Connaissance Géologique du Bassin du Lac Tchad. O.R.S.T.O.M. Mémoire No. 42, 311 pp., 141 figs, 6 coloured pis, 3 maps in separate folder. O.R.S.T.O.M. Paris. Price 220 Frs.

Volume 109, Issue 2
A. T. G.
DOI: https://doi.org/10.1017/S0016756800039583

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P Louis. 1970. Contribution géophysique à la Connaissance Géologique du Bassin du Lac Tchad. O.R.S.T.O.M. Mémoire No. 42, 311 pp., 141 figs, 6 coloured pis, 3 maps in separate folder. O.R.S.T.O.M. Paris. Price 220 Frs.

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P Louis. 1970. Contribution géophysique à la Connaissance Géologique du Bassin du Lac Tchad. O.R.S.T.O.M. Mémoire No. 42, 311 pp., 141 figs, 6 coloured pis, 3 maps in separate folder. O.R.S.T.O.M. Paris. Price 220 Frs.

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