Anatomía y Fisiología de las aves domésticas

by Hoffman, G
Published 1968

Parasitos comunes de los peces /

by Hoffman , G.L.
Published 1974

Control of whirling disease (Myxosoma cerebralis): effects of drying, and desinfection with hydrated lime or chlorine.

by Hoffman, G. L.

Conrol of whirling disease (Myxosona cerebralis): use of methylene blue staining as a possible indicator of effect of heat and spores

by Hoffman, G. L.

Instrumentos básicos de medición /

by Hoffman G., Edward
Published 1992