By BILL STALLIiENO, Nev. (AIM — Nevadc has a variety of natural tourisl attractions — snow - coverec mountains, blue lakes, vast de sort and a bounty of ghost towns But it's a nonnatural wonder nc other state can boast which h expected to keep the motels am hotels brimming again this sum mer: legal gambling.Nevada resort and casino op orators queried by The Asso dated Press generally expecl a good year, despite the New York World's Fair and somt bad publicity about gambling.The fair, the East's big tourisl drawing card this year, should cause only a slight dent, if any if Las Vegas’ tourist businesssays Gabe Vogliotti, secretary oi the Nevada Resort Association.Vince Anselmo of the Thunder bird in Las Vegas says the big season starts when schools 1 e t out in California and people start on summer vacations. “Sixty pei cent of our trade comes from California.”Several officials shrug off the possibility of harmful effects from such publications as “The Green Felt Jungle,” an expose-type book on Nevada gambling.Jud Allen, manager of t h c Reno Chamber of Commerce, says, That sort of thing has-never been harmful as far a attracting people goes.”Reno, Las Vegas and Lake Tahoe account for 95 per cent ol the state's legal gambling business. The gross taken in by casinos during the prime months oiJuly, August and September Iasi year was nearly $94 million, 10.t per cent more than in 1962.A Nevada Gambling Commis sion spokeman says there's noth ing to indicate the increase wd slow this year.