Adventure Comics (1938-) #340

Another Legionnaire falls when Brainiac 5's new living computer goes on a rampage, deeming all humans inferior! Plus an additional Superboy story! Also contains pages reproduced in black and white.

Written By:
Jerry Siegel, Otto Binder
Pencils:
Curt Swan
Inks:
George Klein, John Sikela
Cover By:
Curt Swan, Ira Schnapp, George Klein