| Authors | Year | Title | Publisher |
| Williams RJP | 1959 | Deposition of trace elements in basic magma | Nature, London 184, p. 44 only |
| Williams RJ & Eugster HP | 1970 | Variations of oxygen fugacity in the Skaergaard intrusion | Geological Society of America Abstracts with Programs 2, p. 721-722 |
| Williams RJ | 1971 | Reaction constants in the system Fe-MgO-SiO2-O2; intensive parameters in the Skaergaard intrusion, East Greenland | American Journal of Science 271, p. 132-146 |
| Morse SA, Lindsley DH & Williams RJ | 1980 | Concerning intensive parameters in the Skaergaard intrusion | American Journal of Science 280A, p. 159-170 |