SEEN 2 PALE GREEN FLYING SAUCERS OVER ALLENTOWN , PA ** JULY 4TH 1977/78 **

SORRY, I AM THE ONLY EYE WITNESS THAT I KNOW OF REGUARDING THIS INCIDENT.  I SAW 2 DISCS (SAUCER SHAPED) PALE GREEN IN COLOR ONE FLYING SLIGHTLY AHEAD OF THE OTHER AND THEY WERE ABOUT THE SIZE OF A FOOTBALL FIELD OR LARGER,  THEY SEEMED TO BE SLIGHTLY ROUNDED ON THE BOTTOM AND SMOOTH NO WINDOWS,LIGHTS OR ANYTHING JUST SMOOTH.  THEY WERE CUTTING THROUGH THE CLOUDS RIGHT OVER MY HEAD OVER JORDAN PARK IN ALLENTOWN,PA.  THEY DID NOT MAKE A SOUND AND WERE TRAVELING IN A  NORTHWEST TO SOUTHEAST DIRECTION.  I WOULD SAY THEY WERE TRAVELING AT ABOUT 500 TO 600 MPH, AND I WATCHED THEM CRUISE ABOUT 20 MAYBE 30 MILES UNTIL OUT OF SIGHT.  
THIS SIGHTING HAPPENED IN 1977 OR 1978 ON JULY 4TH NEAR MIDNIGHT AND THE DIRECTION THEY FLEW IN WAS IN THE DIRECTION OF A LOCAL AIRPORT KNOWN AT THAT TIME AS THE A.B.E. AIRPORT (ALLENTOWN,BETHLEHEM,EASTON AIRPORT) BUT IS NOW KNOWN AS THE LEHIGH VALLEY INTERNATIONAL AIRPORT.  I BELEIVE THEY MUST HAVE SEEN SOMETHING ON RADAR BUT I DID NOT SEE ANY INFORMATION IN THE LOCAL NEWSPAPER AT THAT TIME REGARDING THIS INCIDENT.  
I WISH I WOULD HAVE SOME TYPE OF VERIFICATON OF THIS SIGHTING VIA RADAR RECORDS ETC.