Further studies on duodenal mucus as a factor in age resistance of chickens to parasitism /
Frick, Lyman P.
Further studies on duodenal mucus as a factor in age resistance of chickens to parasitism / Lyman P. Frick and James E. Ackert - [S.l. : s.n.], 1948 - 192-206 p. ; 28 cm - The Journal of parasitology ; 34 .
Further studies on duodenal mucus as a factor in age resistance of chickens to parasitism / Lyman P. Frick and James E. Ackert - [S.l. : s.n.], 1948 - 192-206 p. ; 28 cm - The Journal of parasitology ; 34 .