Jacobs, J. A. (1916-)

Reversals of the earth's magnetic field / by: Jacobs, J. A. (1916-) (Language materials, printed)

The Earth's core : = its structure, evolution, and magnetic field : proceedings of a Royal Society discussion meeting held on 27 and 28 January 1982 / by: Creer, K. M.; Jacobs, J. A. (1916-); Runcorn, S. K.; Royal Society (Great Britain); Earth (Language materials, printed)