Isham, C. J., Penrose, R., & Sciama, D. W. 1. (1981). Quantum gravity 2: A second Oxford Symposium. Oxford: Clarendon.
Chicago Style CitationIsham, Chris J., R. Penrose, and Dennis William 1926- Sciama. Quantum Gravity 2: A Second Oxford Symposium. Oxford: Clarendon, 1981.
MLA CitationIsham, Chris J., R. Penrose, and Dennis William 1926- Sciama. Quantum Gravity 2: A Second Oxford Symposium. Oxford: Clarendon, 1981.
Warning: These citations may not always be 100% accurate.