Livestock improvement in relation to heredity and environment /
Nichols, James Edward, 1902-
Livestock improvement in relation to heredity and environment / by J.E. Nichols. - 4th ed. - Ames : Iowa State College Press, c1957. - xi, 240 p. : ill., plates, diagrs. (1 col.) ; 23 cm.
"References": p. 219-233.
Heredity.
Livestock.
Livestock improvement in relation to heredity and environment / by J.E. Nichols. - 4th ed. - Ames : Iowa State College Press, c1957. - xi, 240 p. : ill., plates, diagrs. (1 col.) ; 23 cm.
"References": p. 219-233.
Heredity.
Livestock.