APA Style
Four Corners Self- study CD-ROM. (2012).
UK:
Cambridge Univ Press.
Chicago Style
Four Corners Self- study CD-ROM.
level 3.
UK:
Cambridge Univ Press,
2012.
CD.
MLA Style
Four Corners Self- study CD-ROM.
level 3.
UK:
Cambridge Univ Press,
2012.
CD.
Turabian Style
Four Corners Self- study CD-ROM.
UK:
Cambridge Univ Press,
2012.
CD.