Technology
Technology
BLUMLEIN, ALAN DOWER.
Improvements in and relating t..[London, Eyre and Spottiswoode], 1933, 14th June.
MILNE, J. and T. GRAY. - MAPPING THE SHAKING EARTH - THE INVENTION OF THE SEISMOGRAPH
On Seismic Experiments. Commun..(London, Harrison and Sons, 1883).
DERRY, T.K. and TREVOR I. WILLIAMS.
A Short History of Technology ..N.Y., Oxford, Oxf. Univ. Press, 1961.