Não informado. (1984). Classical and Quantum Gravity. Institute of Physics.
Style de citation Chicago (17e éd.)Não informado. Classical and Quantum Gravity. Bristol, Inglaterra: Institute of Physics, 1984.
Style de citation MLA (8e éd.)Não informado. Classical and Quantum Gravity. Institute of Physics, 1984.
Attention : ces citations peuvent ne pas être correctes à 100%.