Paretsky, S. (2000). Hard time: A V.I. Warshawski novel. Dell Books.
Lua i Stíl Chicago (17ú heag.)Paretsky, Sara. Hard Time: A V.I. Warshawski Novel. New York: Dell Books, 2000.
Lua MLA (9ú heag.)Paretsky, Sara. Hard Time: A V.I. Warshawski Novel. Dell Books, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.