TY  - CHAP
LA  - eng
PY  - 1986
SN  - 0-8176-3330-8
TI  - Ratio, decimals and fractions
UR  - https://nbn-resolving.org/urn:nbn:de:0070-bipr-12076
Y2  - 2024-11-22T01:04:10
ER  -