1 matching record(s)
file U (Stack)Egger, Hermann
"A new universal sundial design"
Offprint from: Sky and telescope, June 1960 (Cambridge, Mass. : Sky Publishing Corporation). Presented by the author.
[Unknown]
1960
1 matching record(s)
file U (Stack)Egger, Hermann
"A new universal sundial design"
Offprint from: Sky and telescope, June 1960 (Cambridge, Mass. : Sky Publishing Corporation). Presented by the author.
[Unknown]
1960