APA

Beck A. H. W., Cambridge University Press, . (1948). Velocity-modulated thermionic tubes. Cambridge: Cambridge at the University Press.

Chicago

Beck Arnold Hugh William, Cambridge University Press, . 1948. Velocity-modulated thermionic tubes. Cambridge: Cambridge at the University Press.

Harvard

Beck A. H. W., Cambridge University Press, . (1948). Velocity-modulated thermionic tubes. Cambridge: Cambridge at the University Press.

MLA

Beck Arnold Hugh William, Cambridge University Press, . Velocity-modulated thermionic tubes. Cambridge: Cambridge at the University Press. 1948.