APA

Bolton R., . (2003). Creative watercolour techniques. Tunbridge Wells: Search press.

Chicago

Bolton Richard, . 2003. Creative watercolour techniques. Tunbridge Wells: Search press.

Harvard

Bolton R., . (2003). Creative watercolour techniques. Tunbridge Wells: Search press.

MLA

Bolton Richard, . Creative watercolour techniques. Tunbridge Wells: Search press. 2003.