How it works : the illustrated encyclopedia of science and technology /
edited by Ralph Hancock...[et al.].
- New york : Marshall Cavendish, c 1977.
- Vols. : ill. ; 28 cm.
V. 8- Fibre optics-gauss
47 47
0 85685 210 4
Dictionaries & encyclopedias.
503 / I6
V. 8- Fibre optics-gauss
47 47
0 85685 210 4
Dictionaries & encyclopedias.
503 / I6