Made simple self-teaching enciclopedia :
Sperling, Abraham Paul, 1912-.
Made simple self-teaching enciclopedia : mathematics / Abraham Sperling, Monroe Stuart. - 1961. - 192 p. ; 27 cm.
QA39 / S86
Made simple self-teaching enciclopedia : mathematics / Abraham Sperling, Monroe Stuart. - 1961. - 192 p. ; 27 cm.
QA39 / S86