SubjectPredicateObjectGraph
http://historyofwork.iisg.nl/detail_dir.php?know_id=6595
http://historyofwork.iisg.nl/detail_dir.php?know_id=6598
http://historyofwork.iisg.nl/detail_dir.php?know_id=51681
http://historyofwork.iisg.nl/detail_dir.php?know_id=6596
http://hdl.handle.net/10622/SRVW6S
http://historyofwork.iisg.nl/detail_dir.php?know_id=6599
http://historyofwork.iisg.nl/detail_dir.php?know_id=6603
http://historyofwork.iisg.nl/detail_dir.php?know_id=6593
http://historyofwork.iisg.nl/detail_dir.php?know_id=6597
http://historyofwork.iisg.nl/detail_dir.php?know_id=6591
http://historyofwork.iisg.nl/detail_dir.php?know_id=35023
http://historyofwork.iisg.nl/detail_dir.php?know_id=6594
http://historyofwork.iisg.nl/detail_dir.php?know_id=6601
http://historyofwork.iisg.nl/detail_dir.php?know_id=6602
http://historyofwork.iisg.nl/detail_dir.php?know_id=6592
http://historyofwork.iisg.nl/detail_dir.php?know_id=6604
http://hdl.handle.net/10622/UQJZKJ