Numbers :
Niven, Ivan Morton, 1915-.
Numbers : rational and irrational / Ivan Niven. - New York : Random House, 1961. - 136 p. ; 23 cm.
QA241 / N58
Numbers : rational and irrational / Ivan Niven. - New York : Random House, 1961. - 136 p. ; 23 cm.
QA241 / N58