Was ist Mathematik?
Subtitle: Unterhaltungen während einer Seereise
By: von Lothar Heffter
Publisher: Theodor Fisher
Published: 1922
Place of publication: Freiburg
Language: ger
Number of pages: 160
Subjects: Mathematics
Notes: Includes bibliographical references. and index.

Microfilm. New York, N.Y. : Columbia University Libraries, 2007. 1 microfilm reel; 35 mm. Master negative: 2007-10093-1. No. 1 on a reel of 7 titles.