Παραπομπή APA

Blasius, J., & Greenacre, M. (1997). Visualization of categorical data. Academic Press.

Παραπομπή Chicago Style

Blasius, Jorg, και Michael Greenacre. Visualization of Categorical Data. London: Academic Press, 1997.

Παραπομπή MLA

Blasius, Jorg, και Michael Greenacre. Visualization of Categorical Data. Academic Press, 1997.