O’Connor, M. P.; Greenstein, E. L. (2017). "Parallelism". Oxford Reference - The Princeton Encyclopedia of Poetry and Poetics (4 ed.). Retrieved January 7, 2023.
O’Connor, M. P.; Greenstein, E. L. (2017). "Parallelism". Oxford Reference - The Princeton Encyclopedia of Poetry and Poetics (4 ed.). Retrieved January 7, 2023.