Rexroth, K. (1970). The collected longer poems. New Directions.
Citazione stile Chigago Style (17a edizione)Rexroth, Kenneth. The Collected Longer Poems. Nueva York: New Directions, 1970.
Citatione MLA (9a ed.)Rexroth, Kenneth. The Collected Longer Poems. New Directions, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.