Envelopes/
Boltianskii, V. G. 1925-
Envelopes/ by V.G. Boltyanskii. Translated and adapted from the Russian by Robert B. Brown. - New York: Macmillan, 1964. - ix, 76 p.: illus., 23 cm. - Popular lectures in mathematics, v. 12 Survey of recent East European mathematical literature . - Popular lectures in mathematics v. 12. .
"A Pergamon Press book." Translation of [Ogibai²ushchai²a]
64014142 //r896
Envelopes (Geometry)
516.7 / B694e
Envelopes/ by V.G. Boltyanskii. Translated and adapted from the Russian by Robert B. Brown. - New York: Macmillan, 1964. - ix, 76 p.: illus., 23 cm. - Popular lectures in mathematics, v. 12 Survey of recent East European mathematical literature . - Popular lectures in mathematics v. 12. .
"A Pergamon Press book." Translation of [Ogibai²ushchai²a]
64014142 //r896
Envelopes (Geometry)
516.7 / B694e