1
Published 2012
American Chemical Society

7
Published 1981
American Chemical Society

8
Published 2005
American Chemical Society
Subjects: ...Pacific Northwest National Laboratory (U.S.) / history...

9
Published 1979
American Chemical Society
Subjects: ...United States / National Aeronautics and Space Administration...

10
Published 1995
American Chemical Society
Subjects: ...National Science Foundation (U.S.)...

11
Published 1957
American Chemical Society
Subjects: ...Argonne National Laboratory...

12
Published 1986
American Chemical Society
Subjects: ...Castillo de San Marcos National Monument (Saint Augustine, Fla.)...

13
Published 1981
American Chemical Society

14
Published 1982
American Chemical Society

15
Published 2002
American Chemical Society

16
Published 1996
American Chemical Society

17
Published 1999
American Chemical Society

18
Published 1991
American Chemical Society

19
Published 1992
American Chemical Society

20
Published 1981
American Chemical Society