Columbia subject headings:
Gardens--History.
Gardens--Philosophy.
Gardens--Social aspects.
Interpersonal communication.
Parks--History.
Parks--Philosophy.
Parks--Social aspects.
Privacy.
Harvard subject headings:
Gardens--History
Gardens--Philosophy.
Gardens--Social aspects.
Human settlements.
Interpersonal communication.
Parks--History.
Parks--Philosophy.
Parks--Social aspects.
Privacy, Right of.
Public spaces.
Space and time.
Princeton subject headings:
Gardens--History.
Gardens--Philosophy.
Gardens--Social aspects.
Interpersonal communication.
Parks--History.
Parks--Philosophy.
Parks--Social aspects.
Privacy.