Navarra, J. G. (1967). Today's basic science: The atom and the earth. California State Dept. of Education.
Lua i Stíl Chicago (17ú heag.)Navarra, John Gabriel. Today's Basic Science: The Atom and the Earth. Sacramento: California State Dept. of Education, 1967.
Lua MLA (9ú heag.)Navarra, John Gabriel. Today's Basic Science: The Atom and the Earth. California State Dept. of Education, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.