Symposium on the Structure and Physical Properties of the Earth's Crust University of Colorado & Heacock, J. G. (1971). The structure and physical properaties of the earth's crust. American Geophysical Union.
Cita Chicago (17th ed.)Symposium on the Structure and Physical Properties of the Earth's Crust University of Colorado i John G. Heacock. The Structure and Physical Properaties of the Earth's Crust. Washington: American Geophysical Union, 1971.
Cita MLA (8th ed.)Symposium on the Structure and Physical Properties of the Earth's Crust University of Colorado i John G. Heacock. The Structure and Physical Properaties of the Earth's Crust. American Geophysical Union, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.