John Jackman; Wendy Wren. (2013). Writing: Introductory Pupil Book (Collins Primary Focus) (None.). HarperCollins UK.
芝加哥风格引文John Jackman; Wendy Wren. Writing: Introductory Pupil Book (Collins Primary Focus). None. HarperCollins UK, 2013.
MLA引文John Jackman; Wendy Wren. Writing: Introductory Pupil Book (Collins Primary Focus). None. HarperCollins UK, 2013.
警告：这些引文格式不一定是100％准确.