2.776 እይታዎች
Acid rain, economic development, and a century of mining pollute Rocky Mountain waters.
መልቀቅ: Jan 09, 1990
የስራ ጊዜ: 56 ደቂቃዎች
ቋንቋ:
ስቱዲዮ: Bullfrog Films, Earth Image Films
ሀገር: United States of America