Q and A: Bart Gordon.
Marris
Emma
E
Gordon
Bart
B
D003246:Conservation of Energy Resources; D035082:Federal Government; D006801:Humans; D011057:Politics; D012586:Science / Q000193:education / Q000331:legislation & jurisprudence* / Q000592:standards / Q000639:trends*; D014481:United States; D018557:United States National Aeronautics and Space Administration / Q000639:trends