HEARINGS BEFORE A SPECIAL SUBCOMMITTEE ON AIR AND WATER POLLUTION. .5. Congress. Senate. OF THE COMMITTEE ON PUBLIC WORKS. EIGHTY-EIGHTH CONGRESS SECOND SESSION TECHNICAL HEARINGS HELD ON PROGRESS AND PROGRAMS 35-573 PART 2 WASHINGTON, D.C. JUNE 24, 25, 30; JULY 1 AND 2, 1964 Printed for the use of the Committee on Public Works U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 1964 1 |