Titles written by Per Ola:
Number of documents found: 2
- Per Ola, Emily D'Aulaire
Title: Takeing the Measure of Time - Keeping Time Across Centuries
SubTitle: Cover Story in Smithsonian Magazine , December 1999
Keywords: timekeeping
Edition: 1999
Page or pages: 14
BHM No: 3775 - Per Ola, Emily D'Aulaire
Title: Taking the measure of time
Other Keywords: Smithsonian exhibit glass plate watch Betts
Parent Document ID: 6213 - Parent Document Title: Smithsonian
chapter or other location info e.g. year vol no: 1999 dec
Page or pages: 52 - 65
BHM No: 8436
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