The use of isotopes in soil organic matter studies : report of the FAO/IAEA Technical Meeting....
Pergamon Press, 1966
Buku Teks
World water balance and water resources of the earth
Unesco, 1978
Buku Referensi
Press, Frank
Earth
W H Freeman , 1974
Buku Teks
The Crust of the earth: an introduction to geology
edited by Samuel Rapport and Helen Wright
New American Library, 1962
Buku Teks
Prothero, Donald R.
Evolution of the Earth
McGraw-Hill Higher Education, 2004
Buku Referensi