Courant, Richard What is Mathematics? An elementary approach to ideas and methods by Richard Courant and Herbert Robbins. - London New York [etc.] Oxford university press [c1941] - 3 p. l., v-xix, 521 p. illus., diagrs. 24 cm. "Suggestions for further reading": p. 511-514. LCCN: 41025632 //r863 Subjects--Topical Terms: Mathematics LC Class. No.: QA37 / .C675 Dewey Class. No.: 510