On April 22, HSUS President John A. Hoyt delivered the following message on the steps of the U.S. Capitol before 350,000 people gathered in Washington, D.C., for Earth Day 1990.
Hoyt, John A.
"Figure Out What You Care About ...,"
Serial - HSUS News 1989-93 (indiv. artcls): Vol. 35
, Article 1.
Available at: https://www.wellbeingintlstudiesrepository.org/newshsus/vol35/iss3/1