0000948600-02-000029 10-K 4 20011231 20020415 PERMA FIX ENVIRONMENTAL SERVICES INC 0000891532 4955 581954497 DE 1231 10-K 34 001-11596 02610345 1940 NORTHWEST 67TH PLACE SUITE A GAINESVILLE FL 32653 3523734200 1940 NW 67TH PL SUITE A GAINESVILLE FL 32653 10-K 1 form10k.htm FORM 10-K (12-31-2001) 10-K 3 form10k.pdf FORM 10-K (PDF VERSION) EX-21.1 4 sublist.htm SUBSIDIARY LIST EX-23.1 5 consent.htm CONSENT OF BDO SEIDMAN, LLP