Columbia University [Women carrying a stack of books down a flight of stairs.]
Columbia University [Student carrying a stack of books down stairs.]
Columbia University [Student carrying books down a flight of stairs.]
Columbia University [Women carrying large stack of books down stairs.]
Columbia University [Woman with a large stack of books walking down a flight of stairs.]
Columbia University [Woman carrying a large stack of books down stairs.]
Columbia University [Man carrying a box down stairs.]
Columbia University [Woman carrying a large stack of books downstairs.]
Columbia University [Woman carrying large stack of books downstairs.]
Columbia University [Two women looking through books.]
Columbia University [Women cooking in a kitchen.]
Columbia University [Students talking in a stairway.]
Columbia University [Students talking on a stairway.]