APA
Fowler A., . (2000). The virtuous spiral. London: Earthscan.
Chicago
Fowler Alan, . 2000. The virtuous spiral. London: Earthscan.
Harvard
Fowler A., . (2000). The virtuous spiral. London: Earthscan.
MLA
Fowler Alan, . The virtuous spiral. London: Earthscan. 2000.