Morgan, V. E. (1963). A first approach to economics. Pitman and Sons, Ltd.
芝加哥风格引文Morgan, Victor E. A First Approach to Economics. London: Pitman and Sons, Ltd, 1963.
MLA引文Morgan, Victor E. A First Approach to Economics. Pitman and Sons, Ltd, 1963.
警告：这些引文格式不一定是100％准确.