1.
, . L’Incroyable Stephen Hawking. Paris: Flammarion; 1991.
et . L’Incroyable Stephen Hawking. Paris : Flammarion, 2 juin 1991. ISBN 978-2-0812-7050-3
Ferguson Kitty & Courcelle Olivier. (1991). L'Incroyable Stephen Hawking. Flammarion.
MLA (8th ed.) CitationFerguson Kitty and Courcelle Olivier. L'Incroyable Stephen Hawking. Flammarion, 1991.
Warning: These citations may not always be 100% accurate.