Hay quality
Pollock, E.O., Hosterman, W.H
Hay quality Relation to production and feed value - Washington 1939 - 1-34 p. - United States Department of Agriculture. Miscellaneous Publication No. 363 .
Hay quality Relation to production and feed value - Washington 1939 - 1-34 p. - United States Department of Agriculture. Miscellaneous Publication No. 363 .