Foster, J., Nightingale, J. D., & Nightingale, D. J. (1995). A Short course in general relativity (2nd ed.). New York: Springer-Verlag.
Παραπομπή Chicago StyleFoster, J., J. D. Nightingale, and David J. Nightingale. A Short Course in General Relativity. 2nd ed. New York: Springer-Verlag, 1995.
Παραπομπή MLAFoster, J., J. D. Nightingale, and David J. Nightingale. A Short Course in General Relativity. 2nd ed. New York: Springer-Verlag, 1995.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.