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Stopwatch and timer calibrations
  • PDF
  • English
  • Year: 2004
  • Author: Jeff C Gust; Robert M Graham; Michael A Lombardi; Physics Laboratory (U.S.). Time and Frequency Division
DAP summary tape file: user-defined areas program, technical documentation
  • PDF
  • English
  • Year: 1992
  • Author: United States. Bureau of the Census
Shallow foundations
  • PDF
  • English
  • Year: 2002
  • Author: Kimmerling, Robert
From sundials to atomic clocks: Understanding time and frequency
  • PDF
  • English
  • Year: 1999
  • Author: James Jespersen, Jane Fitz-Randolph
200 years of U.S. census taking: population and housing questions, 1790-1990
  • PDF
  • English
  • Year: 1989
  • Author: Frederick G. Bohme, United States. Bureau of the Census
Lawn insects : how to control them
  • PDF
  • English
  • Author: Arlo McCrillis Vance; B A App
Powered parachute flying handbook
  • PDF
  • English
  • Author: United States. Flight Standards Service. Airman Testing Standards Branch