Source: Life magazine DEC 29 1972- https://books.google.com.vn/books?id=R1cEAAAAMBAJ&printsec=frontcover&hl=vi&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
Source: Life magazine DEC 29 1972- https://books.google.com.vn/books?id=R1cEAAAAMBAJ&printsec=frontcover&hl=vi&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
HALOGEN IS THE FUTURE