▁than ▁forty ▁years . ▁Later , ▁he ▁inaugur ated ▁a ▁course ▁in ▁soci ology ▁at ▁the ▁University ▁of ▁Buenos ▁Aires , ▁taught ▁political ▁economy ▁and ▁constitution al ▁law ▁in ▁the ▁Law ▁School ▁of ▁the ▁university , ▁and ▁eventually ▁served ▁as ▁the ▁president ▁of ▁the ▁university . ▁ ▁Sa aved ra ▁Lam as ▁was ▁a ▁leading ▁Argent ine ▁academ ician ▁in ▁two ▁areas . ▁A ▁pione er ▁in ▁the ▁field ▁of ▁labor ▁legisl ation , ▁he ▁edited ▁several ▁treat ises ▁on ▁labor ▁legisl ation ▁in ▁Argentina ▁and ▁on ▁the ▁need ▁for ▁a ▁univers ally ▁recognized ▁doctrine ▁on ▁the ▁treatment ▁of ▁labor ▁- ▁among ▁them , ▁Centro ▁de ▁leg is lac í on ▁social ▁y ▁del ▁trabajo ▁( 1 9 2 7 ) ▁[ Center ▁of ▁Social ▁and ▁Labor ▁Legisl ation ], ▁Tra ités ▁intern ation aux ▁de ▁type ▁social ▁( 1 9 2 4 ), ▁C ódigo ▁nacional ▁del ▁trabajo ▁( three ▁volumes , ▁ 1 9 3 3 ) ▁[ National ▁Code ▁of ▁Labor ▁Law ]. ▁In ▁the ▁ar ena ▁of ▁practical ▁affairs , ▁Sa aved ra ▁Lam as ▁draft ed ▁legisl ation ▁affect ing ▁labor ▁in ▁Argentina , ▁supported ▁the ▁found ing ▁of ▁the ▁International ▁Labor ▁Organ ization ▁in ▁ 1 9 1 9 , ▁and ▁pres ided ▁over ▁the ▁I LO ▁Conference ▁of ▁ 1 9 2 8 ▁in ▁Gene va ▁while ▁serving ▁simultaneously ▁as ▁leader ▁of ▁the ▁Argent ine ▁deleg ation . ▁ ▁In ▁international ▁law , ▁his ▁other ▁field ▁of ▁major ▁scholar ly ▁interest , ▁he ▁published ▁" La