1 2 3 4 (wordless diagrams).

MLA

Holmes, Nigel. 1 2 3 4 (wordless Diagrams). New York: Bloomsbury, 2005.

APA

Holmes, N. (2005). 1 2 3 4 (wordless diagrams). New York: Bloomsbury.

Chicago

Holmes, Nigel, 1 2 3 4 (wordless Diagrams). New York: Bloomsbury, 2005.