TY  - DATA
AU  - Nelsen, Roger B.
TI  - Proofs without words II: more exercises in visual thinking 
T2  - Classroom Resource Materials, 
SN  - 9781470451899 (online)
PY  - 2000///
CY  - Washington, DC
PB  - Mathematical Association of America
KW  - Mathematics
N1  - Includes bibliographical references (p. [125]-128) and index
UR  - https://doi.org/10.1090/clrm/014
ER  -