Robertson, A. H. (1941). Methods of Analysis, Official and Tentative, of the Association of Official Agricultural Chemists (5th ed.).
استشهاد بنمط شيكاغوRobertson, A. H. Methods of Analysis, Official and Tentative, of the Association of Official Agricultural Chemists (5th Ed.). 1941.
MLA استشهادRobertson, A. H. Methods of Analysis, Official and Tentative, of the Association of Official Agricultural Chemists (5th Ed.). 1941.
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