TY  - BOOK
AU  - Wijdenes,Piet
TI  - Five place tables: logarithms of integers, logarithms and natural values of trigonometric functions in the decimal system for each grade from 0 to 100 grades with interpolation tables ..
AV  - QA55 .W67
PY  - 1937///]
CY  - Groningen (Holland)
PB  - P. Noordhoff ltd.
KW  - Logarithms
KW  - Trigonometry
KW  - Tables
N1  - At head of title: P. Wijdenes; "Formulae": 4 p. laid in
ER  -