TY  - DATA
AU  - Nelsen, Roger B.
TI  - Proofs without words III: further exercises in visual thinking 
T2  - Classroom Resource Materials, 
SN  - 9781614441212 (online)
PY  - 2018///
CY  - Washington, DC
PB  - Mathematical Association of America
KW  - Mathematics
N1  - Includes bibliographical references (pages 179-183) and index
UR  - https://doi.org/10.5948/9781614441212
ER  -