Standard time throughout the world.
Gould, Ralph Edgar, 1886-
Standard time throughout the world. - [4th edition.]. - ii, 30 pages illustrations, map 24 cm - National Bureau of Standards circular 496 . - National Bureau of Standards circular ; 496. .
"Supersedes Circular 406."
"Selected references": pages 29-30.
Time--Systems and standards.
Time--Systems and standards.
Global Standards Timezones Time timekeeping
C 13.4:496
Standard time throughout the world. - [4th edition.]. - ii, 30 pages illustrations, map 24 cm - National Bureau of Standards circular 496 . - National Bureau of Standards circular ; 496. .
"Supersedes Circular 406."
"Selected references": pages 29-30.
Time--Systems and standards.
Time--Systems and standards.
Global Standards Timezones Time timekeeping
C 13.4:496