Columbia subject headings:
Harvard subject headings:
Christian pilgrims and pilgrimages--Economic aspects--Italy--Siena.
Christian pilgrims and pilgrimages--Italy--Siena--Economic aspects.
Christian pilgrims and pilgrimages--Italy--Siena--History--Sources.
Money--Italy--Siena--History--Sources.
Siena (Italy)--Economic conditions--Sources.
Spedale di Santa Maria della Scala (Siena, Italy)--Accounting--History--Sources.
Princeton subject headings:
Accounting--Italy--Siena--History--Sources.
Christian pilgrims and pilgrimages--Italy--Siena--History--Sources.
Spedale di Santa Maria della Scala (Siena, Italy)--Accounting--History--Sources.