Vroman, A. (1978). A reappraisal of the structure of the earth (with special reference to the African craton and its bordering orogens). Ministry of Industry and Commerce, Hebrew University of Jerusalem, Tel Aviv University.

Vroman, A.J. A Reappraisal of the Structure of the Earth (with Special Reference to the African Craton and Its Bordering Orogens). [Jerusalem]: Ministry of Industry and Commerce, Hebrew University of Jerusalem, Tel Aviv University, 1978.

Vroman, A.J. A Reappraisal of the Structure of the Earth (with Special Reference to the African Craton and Its Bordering Orogens). Ministry of Industry and Commerce, Hebrew University of Jerusalem, Tel Aviv University, 1978.