Thiess, U. (2007). "... but I have promises to keep.": My life before, with and after Robert Taylor. Xlibris.
Style de citation Chicago (17e éd.)Thiess, Ursula. "... but I Have Promises to Keep.": My Life Before, with and After Robert Taylor. [Philadelphia]: Xlibris, 2007.
Style de citation MLA (9e éd.)Thiess, Ursula. "... but I Have Promises to Keep.": My Life Before, with and After Robert Taylor. Xlibris, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.