Memoirs of the American Mathematical Society, ISSN 0065-9266 ; number 612
Print version: Porti, Joan. Torsion de Reidemeister pour les varietes hyperboliques. Providence, Rhode Island : American Mathematical Society, 1997 ix, 139 pages ; 26 cm. Memoirs of the American Mathematical Society ; no. 612 ISBN 9780821806319
"July 1997, volume 128, number 612 (end of volume)."