Washington Area Spark:
Hayes plans Earth Day activities: 1970
Washington Area Spark:
Cyclist demonstrates concern on first Earth Day: 1970
Washington Area Spark:
Gas mask dramatizes plight of environment (2): 1970
Washington Area Spark:
Gas mask dramatizes plight of environment (1): 1970
Washington Area Spark:
Thousands rally at Interior Dept. on first Earth Day: 1970
Washington Area Spark:
First Earth Day draws thousands: 1970
Washington Area Spark:
Thousands march in D.C. on first Earth Day: 1970
Washington Area Spark:
Hayes plans to defeat anti-environment lawmakers: 1970