Valentine, C. W. (1956). The normal child and some of his abnormalities. Penguin Books.
芝加哥风格引文Valentine, Charles Wilfred. The Normal Child and Some of His Abnormalities. [Harmondsworth]: Penguin Books, 1956.
MLA引文Valentine, Charles Wilfred. The Normal Child and Some of His Abnormalities. Penguin Books, 1956.
警告：这些引文格式不一定是100％准确.