APA

Harrison H., . (2004). the Encyclopedia of Watercolour Techniques. Tunbridge Wells: Search Press.

Chicago

Harrison Hazel, . 2004. the Encyclopedia of Watercolour Techniques. Tunbridge Wells: Search Press.

Harvard

Harrison H., . (2004). the Encyclopedia of Watercolour Techniques. Tunbridge Wells: Search Press.

MLA

Harrison Hazel, . the Encyclopedia of Watercolour Techniques. Tunbridge Wells: Search Press. 2004.