APA
Roland J., . (2010). Essential guitar chords : the easy-to-use guide. London: Arcturus Pub.
Chicago
Roland Joshua, . 2010. Essential guitar chords : the easy-to-use guide. London: Arcturus Pub.
Harvard
Roland J., . (2010). Essential guitar chords : the easy-to-use guide. London: Arcturus Pub.
MLA
Roland Joshua, . Essential guitar chords : the easy-to-use guide. London: Arcturus Pub. 2010.