TY  - BOOK
AU  - Hanna G.
AU  - de Villiers, M.
TI  - Proof and proving in mathematics the 19th ICMI  study
SN  - 9789400721289
AV  - DUCE QA14.C3H36 
PY  - 2012///
CY  - London
PB  - Springer
N1  - includes bibliography references and index
ER  -