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الناشرون: American Telephone and Telegraph Co.]
المساهمون: Biodiversity Heritage Library
المجموعات: Biodiversity Heritage Library
التصنيف: Technology and Applied Science
الموضوعات: Science--periodicals. , Technology--Periodicals. , Telecommunication--Periodicals. , Electric engineering--Periodicals. , Communication--Periodicals. , Electronics--Periodicals.
رقم الإستدعاء: 621.38/05
كلمات مفتاحية: Telecommunication Periodicals. Electric engineering Periodicals. Communication Periodicals. Electronics Periodicals. Science Periodicals. Technology Periodicals.