Author’s surname, initial. Year. Title of the work – image title [Material type]. In author’s/editor’s initial surname. Year. Title. Edition. Place of Publication: Publisher, page number.
Example:
Mintzberg, H. 1979. The basic parts of organisations – Mintzberg’s model [Diagram]. In G.A. Cole. 2004. Management theory and practice. 6th edition. London: Thomson, 186.
A caption should always include:
EXAMPLE OF A DIAGRAM WITH A CAPTION
Figure 2.6: The research onion (Saunders et al.., 2007:102)
where 2 indicates the number of the chapter, and 6 the number of the figure in Chapter 2.