Roberts, D. K. (1945). The Centuries' Poetry: 4 Hood to Hardy. Penguin.
Chicago-Zitierstil (17. Ausg.)Roberts, Denys Kilham. The Centuries' Poetry: 4 Hood to Hardy. Harmondsworth: Penguin, 1945.
MLA-Zitierstil (8. Ausg.)Roberts, Denys Kilham. The Centuries' Poetry: 4 Hood to Hardy. Penguin, 1945.
警告：這些引文格式不一定是100％准確.