Columbia subject headings:
Harvard subject headings:
Interdisciplinary approach to knowledge.
Social evolution.
Space in literature--History.
Space perception--Philosophy--History.
Space--Philosophy--History.
Space--Social aspects--History.
Princeton subject headings:
Interdisciplinary approach to knowledge.
Social evolution.
Space in literature--History.
Space perception--Philosophy--History.
Space--Philosophy--History.
Space--Social aspects--History.