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This was first heard live on air at DZUP 1602 AM. Podcast uploaded at iskwiki. Click to listen

Shaping the day a history of timekeeping in England and Wales 1300-1800 ανά Glennie, Paul, Thrift, Nigel

A second is a hiccup a child's book of time ανά Hutchins, Hazel

Big book of time ανά Edmonds, William

Durations the encyclopedia of how long things take ανά Sandow, Stuart A.

Time ανά Dorling, Geoffrey 1935-

The short inetrval timer

Time bases, scanning generators their design and development, with notes on the cathode ray tube ανά Puckle, Owen Standige

Electronic time measurements ανά Chance, Britton, ed