The genesis of a painting :
Picasso's Guernica /
by Rudolf Arnheim
APA Citation
Arnheim, R., Picasso, P. (2006). The genesis of a painting: Picasso's Guernica. Berkeley: University of California Press.
MLA Citation
Arnheim, Rudolf, and Pablo Picasso. The Genesis of a Painting: Picasso's Guernica. Berkeley: University of California Press, 2006.
Warning: These citations may not always be complete (especially for serials).