Millman, S. (1984). A History of engineering and science in the bell system: Communications sciences (1925-1980). The United States of America: AT&T Bell Laboratories.
শিকাগো স্টাইলে সাইটেশনMillman, S. A History of Engineering and Science in the Bell System: Communications Sciences (1925-1980). The United States of America: AT&T Bell Laboratories, 1984.
এমএলএ সাইটেশনMillman, S. A History of Engineering and Science in the Bell System: Communications Sciences (1925-1980). The United States of America: AT&T Bell Laboratories, 1984.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.