TY  - BOOK
AU  - Skorney,James Robert
TI  - The development of ordination, cardination and natural number
PY  - 1980///
CY  - Ann Arbor, Mich.n
PB  - University Microfilms International
KW  - Arithmetic
KW  - Study and teaching (Primary)
N1  - Thesis (Ph.D.) niversity of Arizona, 1980
ER  -