APA (7e ed.) Bronvermelding

Stephen Hawking 60th Birthday Workshop and Symposium Cambridge, England, Hawking, S. W., Gibbons, G. W., Shellard, E. P. S., & Rankin, S. J. (2003). The future of theoretical physics and cosmology: Celebrating Stephen Hawking's 60th birthday. Cambridge University Press.

Chicago (17e ed.) Bronvermelding

Stephen Hawking 60th Birthday Workshop and Symposium Cambridge, England, S. W. Hawking, G. W. Gibbons, E. P. S. Shellard, en S. J. Rankin. The Future of Theoretical Physics and Cosmology: Celebrating Stephen Hawking's 60th Birthday. Cambridge, U.K: Cambridge University Press, 2003.

MLA (8e ed.) Bronvermelding

Stephen Hawking 60th Birthday Workshop and Symposium Cambridge, England, et al. The Future of Theoretical Physics and Cosmology: Celebrating Stephen Hawking's 60th Birthday. Cambridge University Press, 2003.