Watkin, J. Elphin.
Watkin, Job Elphin
VIAF ID: 93863749
|A practical course in agricultural chemistry for senior students of agriculture, dairying, horticulture and poultry husbandry
|A practical course in agricultural chemistry / Frank Knowles, J. Elphin Watkin, John Russell. - 2nd ed. - London, 1947.
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History of VIAF ID:93863749 (4)