Navarra, J. G. (1967). Today's basic science: The atom and the earth. California State Dept. of Education.
Chicago-viite (17. p.)Navarra, John Gabriel. Today's Basic Science: The Atom and the Earth. Sacramento: California State Dept. of Education, 1967.
MLA-viite (9. p.)Navarra, John Gabriel. Today's Basic Science: The Atom and the Earth. California State Dept. of Education, 1967.
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