Beitman, M. N. Most often needed 1940 radio diagrams and servicing information.
芝加哥风格引文Beitman, M. N. Most Often Needed 1940 Radio Diagrams and Servicing Information.
MLA引文Beitman, M. N. Most Often Needed 1940 Radio Diagrams and Servicing Information.
警告：这些引文格式不一定是100％准确.