HEATH, JAMES P.
Laboratory manual of agricultural chemistry. By C. C. Hedges & H. R. Brayton. Rev. ed. (The Century chemistry series)
HEATH, JAMES P. Laboratory manual of agricultural chemistry. By C. C. Hedges & H. R. Brayton. Rev. ed. (The Century chemistry series) © 20Jan38; A114252. Howard P. Hedges (C); 6Aug65; R365785.
Howard P. Hedges|C