Semi-micro qualitative inorganic analysis : elementary scheme using the filter-pad technique / by R.E.D. Clark. by Clark, R. E. D.

Christian belief and science : a reconciliation and a partership / by R.E.D. Clark. by Clark, R. E. D.

Atoms and molecules simply explained : an introduction to chemical phenomena and their applications / by B.C. Saunders and R.E.D. Clark. by Saunders, B. C.

Other Authors: “…Clark, R. E. D.…”