Norris, Mark Gilbert.2015-12-312015-12-311951http://hdl.handle.net/2097/24773Call number: LD2668 .T4 1951 N6Poultry--Diseases--Research.The resistance of chickens to Ascaridia galli (Schrank) as affected by an aureomycin-vitamin B₁₂ dietary supplementTextMasters theses