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Hughes electrical technology |
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| APA | (1987). Hughes electrical technology, Essex: ELBS/ Longman. | ||||
| MLA | Hughes electrical technology. Essex: ELBS/ Longman, 1987. | ||||
| Harvard | 1987. Hughes electrical technology. ELBS/ Longman, | ||||
| Chicago | Hughes electrical technology. ELBS/ Longman, 1987. | ||||