Deficiencies of certain minerals as factor in resistance of chickens to parasitism /
Gaafar, S. M.
Deficiencies of certain minerals as factor in resistance of chickens to parasitism / S. M. Gaafar and J. E. Ackert - [S.l. : s.n.], 1950 - 1 p. ; 28 cm - The Journal of parasitology ; 36 .
Deficiencies of certain minerals as factor in resistance of chickens to parasitism / S. M. Gaafar and J. E. Ackert - [S.l. : s.n.], 1950 - 1 p. ; 28 cm - The Journal of parasitology ; 36 .