प्रस्तावित विषय : खोज निहित
प्रस्तावित विषय : खोज निहित
Social aspects
Technology
483
Aspect social
398
History
352
Technologie
178
Photography
140
Technological innovations
120
अधिक ...
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द्वारा Bulfin, Robert L.
प्रकाशित 1977
प्रकाशित 1977
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पुस्तक
63
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72
द्वारा Bailes, Kendall E.
प्रकाशित 1978
प्रकाशित 1978
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पुस्तक
73
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द्वारा Hopkins, Nicholas S.
प्रकाशित 2001
प्रकाशित 2001
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पुस्तक