Continents adrift and continents aground readings from Scientific American

Unglazed China по Wilson, J. Tuzo (John Tuzo) 1908-

Physics and geology по Jacobs, J. A. (John Arthur) 1916-2003

Continents adrift readings from Scientific American

I.G.Y. the year of the new moons по Wilson, J. Tuzo (John Tuzo), 1908-

Physics and geology по Jacobs, John Arthurs

Physics and geology по Jacobs, John Arthurs

Physics and geology по Jacobs, J. A. (John Arthur) 1916-2003