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1.

雑誌

雑誌
American Telephone and Telegraph Company
出版情報: New York, N.Y. : AT & T, c1985-c1996
巻次(年次): Vol. 64, no. 1, pt. 1 (Jan. 1985)-v. 75, no. 2 (Mar./Apr. 1996)
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2.

雑誌

雑誌
American Telephone and Telegraph Company
出版情報: New York, N.Y. : AT & T, c1986-1995
巻次(年次): Vol. 1. no. 1 (1986)-v. 10, no. 4 (winter 1995/1996)
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3.

雑誌

雑誌
American Telephone and Telegraph Company ; AT & T Bell Laboratories
出版情報: New York, N.Y. : American Telephone and Telegraph Company, c1984
巻次(年次): Vol. 63, no. 1 (Jan. 1984)-v. 63, no. 10 (Dec. 1984)
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