Text ( visual ) : unmediated Nutritional physiology of the adult ruminant / by Ernest G. Ritzman, Francis G. Benedict. -- Washington, D.C. : Carnegie Institution of Washington , 1938. -- vi, 200 p., 3 leaves of plates : ill., tables ; 26 cm. -- (Carnegie Institution of Washington publication ; no. 494). -- Includes bibliographical references. -- (BA71510838) ; https://ci.nii.ac.jp/ncid/BA71510838 Author Heading(s): Ritzman, Ernest George ; Benedict, Francis Gano. -- Classification(s): LCC : QP141 ; DC : 591.13. -- Subject Heading(s): LCSH : Ruminants ; LCSH : Nutrition ; LCSH : Physiology ; LCSH : Metabolism ; LCSH : Feeds ; LCSH : Cows