Cita APA (7th ed.)

John Jackman; Wendy Wren. (2013). Writing: Introductory Pupil Book (Collins Primary Focus) (None.). HarperCollins UK.

Cita Chicago (17th ed.)

John Jackman; Wendy Wren. Writing: Introductory Pupil Book (Collins Primary Focus). None. HarperCollins UK, 2013.

Cita MLA (9th ed.)

John Jackman; Wendy Wren. Writing: Introductory Pupil Book (Collins Primary Focus). None. HarperCollins UK, 2013.