Columbia subject headings:
Gardens, Mogul Empire--Congresses.
Gardens, Persian--Congresses.
Gardens--India--Congresses.
Gardens--Iran--Congresses.
Gardens--Spain--Congresses.
Islamic gardens--Congresses.
Harvard subject headings:
Gardens, Mogul Empire--Congresses.
Gardens, Persian--Congresses.
Gardens--India--Congresses.
Gardens--Iran--Congresses.
Gardens--Spain--Congresses.
Islamic gardens--Congresses.
Princeton subject headings:
Gardens, Mogul Empire--Congresses.
Gardens, Persian--Congresses.
Gardens--India--Congresses.
Gardens--Iran--Congresses.
Gardens--Spain--Congresses.
Islamic gardens--Congresses.