एपीए उद्धरण

Massachusetts Institute of Technology Radiation Laboratory, Valley, G. E., & Wallman, H. (1965). Vacuum tube amplifiers. Dover Publications.

शिकागो स्टाइल उद्धरण

Massachusetts Institute of Technology Radiation Laboratory, George Edward Valley, और Henry Wallman. Vacuum Tube Amplifiers. New York: Dover Publications, 1965.

एमएलए उद्धरण

Massachusetts Institute of Technology Radiation Laboratory, et al. Vacuum Tube Amplifiers. Dover Publications, 1965.