1 matching record(s)
UO Tracts II(9)Pihl, O. A. L.
On Occulting micrometers and their Value as applied to Exact Astronomical Measurements
Christiania: Grondahl and Sons, 1893.
[Unknown]
1893
1 matching record(s)
UO Tracts II(9)Pihl, O. A. L.
On Occulting micrometers and their Value as applied to Exact Astronomical Measurements
Christiania: Grondahl and Sons, 1893.
[Unknown]
1893