Columbia subject headings:
Harvard subject headings:
Documentary photography
Hartgers, Sacha.
Immigrants--Europe--Pictorial works.
Noncitizens--Europe--Pictorial works.
Refugees--Europe--Pictorial works.
Princeton subject headings:
Documentary photography.
Immigrants--Europe--Pictorial works.
Noncitizens--Europe--Pictorial works.
Refugees--Europe--Pictorial works.