- Biography - Urey, Harold (Clayton) (1893-1981): An article from: Contemporary Authors by Gale Reference Team, 2003-01-01
- ATOMS, MOLECULES AND QUANTA Vol. 2 by Arthur Edward Ruark and Harold Clayton Urey, 1964
- Atoms, Molecules and Quanta Vol 1 by Arthur Edward and Harold Clayton Urey Ruark, 1964
- Atoms, Molecules and Quanta by Arthur Edward and Harold Clayton Urey Ruark, 1930
- Atomic scientist Dr. Harold C. Urey asks justice for Morton Sobell by Harold Clayton Urey, 1955
- Atomic energy: master or servant?: Fifty-third charter day address, by Dr. Harold C. Urey, February 18, 1946, Montana State University by Harold Clayton Urey, 1946
- Atomic terror tomorrow:a warning in the Year Atom Bomb 1 (A.B.1) / by Dr. Harold C. Urey, as told to Michael Amrine in Collier's for Jan. 5, 1946 by Harold Clayton Urey, 1946
- Reprints of some papers by H.C. Urey on the origin of the solar system and on the origin, history and structure of the moon by Harold Clayton Urey, 1963
- The bomb and the next war: An NBC radio discussion (University of Chicago Round table) by Harold Clayton Urey, 1949
- Atoms, Molecules and Quanta Volume I by Arthur Edward & Urey, Harold Clayton Ruark, 1964
- The Intellectual revolution,: An address on the occasion of the twenty-fifth anniversary celebration of the Chatham College Louise C. Buhl Hall of Science, May 10, 1956 by Harold Clayton Urey, 1956
- The origin and development of the Earth and other terrestrial planets (Geochimica et cosmochimica acta) by Harold Clayton Urey, 1951
- I'm a frightened man by Harold Clayton Urey, 1946
- The planets, their origin and development (Yale University. Mrs. Hepsa Ely Silliman memorial lectures) by Harold Clayton Urey, 1967
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