APA
Helm M., . (1989). Mexican painters: Rivera, Orozco, Siqueiros and others artists of the school realist school. Mineola, NY: Dover Publications.
Chicago
Helm Mackinley, . 1989. Mexican painters: Rivera, Orozco, Siqueiros and others artists of the school realist school. Mineola, NY: Dover Publications.
Harvard
Helm M., . (1989). Mexican painters: Rivera, Orozco, Siqueiros and others artists of the school realist school. Mineola, NY: Dover Publications.
MLA
Helm Mackinley, . Mexican painters: Rivera, Orozco, Siqueiros and others artists of the school realist school. Mineola, NY: Dover Publications. 1989.