A history of [pi] /
Petr Beckmann
A history of [pi] / Beckmann, Petr - New York : St. Martin's Press, ©1971. - 200 pages : illustrations, portraits ; 21 cm
9780312381851
512.924 / BEC
A history of [pi] / Beckmann, Petr - New York : St. Martin's Press, ©1971. - 200 pages : illustrations, portraits ; 21 cm
9780312381851
512.924 / BEC