"beauchamp, wibur l. "
science is explaining: / wibur.l. beauchamp - 1 ed. - "usa : scott, foresman and co. ." - ", 384p.; 23 cm."
hard cover
QH366.2 / .B43 1990
science is explaining: / wibur.l. beauchamp - 1 ed. - "usa : scott, foresman and co. ." - ", 384p.; 23 cm."
hard cover
QH366.2 / .B43 1990