How things work the universal encyclopedia of machines
Van Amerongen, C.(Carel)
St Albans Paladin,
1974
Revised ed. of this translation originally published: 1972. - Translation of: 'Wie funktioniert das?'. 2 Aufl. Mannheim : Bibliographisches Institut, 1969
Includes index
ISBN 0-586-08095-3
Technology.