Azul, Hayden
Periodic table of the elements [chart] / Hayden U. Azul. - Metro Manila : [s.n], c1997. - 1 chart : col. ; 28 x 20 cm.
Periodic table of elements.
Periodic table of the elements [chart] / Hayden U. Azul. - Metro Manila : [s.n], c1997. - 1 chart : col. ; 28 x 20 cm.
Periodic table of elements.