PER CURIAM.
The motions of Urban Coalition et al., American Federation of Labor-Congress of Industrial Organizations et al., John E. Coons et al., and San Francisco Neighborhood Legal Assistance Foundation et al., for leave to file briefs as amici curiae are granted.
The motion to affirm is granted and the judgment is affirmed.
MR. JUSTICE DOUGLAS is of the opinion that probable jurisdiction should be noted and the case set for oral argument.