Thomas, S. (1980). The developed world. Bell & Hymn.
芝加哥风格引文Thomas, Spencer. The Developed World. London: Bell & Hymn, 1980.
MLA引文Thomas, Spencer. The Developed World. Bell & Hymn, 1980.
警告：这些引文格式不一定是100％准确.
APA引文
Thomas, S. (1980). The developed world. Bell & Hymn.
芝加哥风格引文Thomas, Spencer. The Developed World. London: Bell & Hymn, 1980.
MLA引文Thomas, Spencer. The Developed World. Bell & Hymn, 1980.