The Red WheelbarrowConsider: Consider:References and further reading 

Selected poems, with an introd. / by R.Jarrell. [N.Y., New Directions, 1963      

Pictures from Brueghel and other poems: collected poems, 1950-1962. / [N.Y.], New Directions           

Paterson. / [N.Y.]. New Directions, [1963?]  

Perloff M (1981 ) The poetics of indeterminacy: Rimbaud to Cage Ch4 Princeton