There seems no longer to be a distributor in the UK for McGinnis & Marx publications.
If you are desparate for one of their titles you can try direct to:-
Mr Paul Sadowski McGinnis & Marx 236 West 26th Street, Ste 11s NEW YORK NY 10001-6736 USA Tel/Fax (001) 212 675 1630 e-mail pabloski@earthlink.net