How do you cite Dulce et decorum est?

How do you cite Dulce et decorum est?

Who published Dulce et Decorum Est? “Dulce et Decorum Est,” by Owen, Wilfred (1893-1918). The Estate of Wilfred Owen. The Complete Poems and Fragments of Wilfred Owen edited by Jon Stallworthy first published by Chatto & Windus, 1983.