cam a22 4500 211100366 CHVBK 20201023161455.0 901220s1990 xxu|||||||||| 00 |eng d (RERO)1323969 RERO geudbu s1ge rero Research collections UMI Ann Arbor MI UMI [1990] XVIII, 245 p. 30 cm txt rdacontent n rdamedia nc rdacarrier Bibliographie (RERO)A021065130 rero Microformes (RERO)A021002072 rero University Microfilms International (IDREF)02643170X BK020000 XK020000 XK020000 RERO RE61096 RE61096 RE610960003 DBUB 1328 RERO 710 2- University Microfilms International (IDREF)02643170X