APA
Soan H., . (2007). Light and shade in watercolour. London: Collins.
Chicago
Soan Hazel, . 2007. Light and shade in watercolour. London: Collins.
Harvard
Soan H., . (2007). Light and shade in watercolour. London: Collins.
MLA
Soan Hazel, . Light and shade in watercolour. London: Collins. 2007.