Weeds -- Canada, Eastern -- Identification. / https://id.loc.gov/authorities/subjects/sh85145920 https://id.loc.gov/authorities/subjects/sh85019361-781 https://id.loc.gov/authorities/subjects/sh99001565 : Uva, Richard H.
1997
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Weeds -- Congresses. / https://id.loc.gov/authorities/subjects/sh85145920 https://id.loc.gov/authorities/subjects/sh99001533 : International Symposium on Biological Control of Weeds
--subdivision Control under individual weeds and groups of weeds, e.g. Prickly pears--Control; Aquatic weeds--Control; and subdivision Weed control under individual crops and groups of crops, e.g. Corn--Weed control
Weeds -- India -- Identification. / https://id.loc.gov/authorities/subjects/sh85145920 https://id.loc.gov/authorities/names/n80125948-781 https://id.loc.gov/authorities/subjects/sh99001565 : WALIA, U. S.
--subdivision Control under individual weeds and groups of weeds, e.g. Prickly pears--Control; Aquatic weeds--Control; and subdivision Weed control under individual crops and groups of crops, e.g. Corn--Weed control
Weeds -- Therapeutic use -- India. / https://id.loc.gov/authorities/subjects/sh85145920 https://id.loc.gov/authorities/subjects/sh2001008985 https://id.loc.gov/authorities/names/n80125948-781 : WALIA, U. S.
Here are entered works on the hours that employees are at work. Works on the number of hours of labor necessary to accomplish a task are entered under Labor time. Works on the units produced by workers in relation to a given effort or unit of time expended are entered under Labor productivity.