APA (7th ed.) Citation

Ropers, R. H. (1988). The invisible homeless: A new urban ecology. Human Sciences Press.

Chicago Style (17th ed.) Citation

Ropers, Richard H. The Invisible Homeless: A New Urban Ecology. New York, N.Y.: Human Sciences Press, 1988.

MLA (9th ed.) Citation

Ropers, Richard H. The Invisible Homeless: A New Urban Ecology. Human Sciences Press, 1988.