Reference: #. Author Last name Initials. Title. Edition. Place of publication: Publisher; Year of publication.
1. Bull MT. Sound moves: iPod culture and urban experience. London: Routledge; 2007.
Use a superscript number (like this: ¹) in the text at the place where you are indicating that you are citing from a source.
It has been generally found that iPod culture is greater in urban areas.¹