Columbia subject headings:
Scots--Norway--History--17th century.
Sinclair, George.
Soldiers of fortune--Norway--History--17th century.
Soldiers of fortune--Scotland--History--17th century.
Harvard subject headings:
Mercenary troops--Europe--History--17th century.
Scots--Europe--History--17th century.
Scots--Foreign countries--History--17th century.
Soldiers of fortune--Scotland--History--17th century.
Princeton subject headings:
Mercenary troops--Europe--History--17th century.
Scots--Europe--History--17th century.
Scots--Foreign countries--History--17th century.
Soldiers of fortune--Scotland--History--17th century.