APA (7th ed.) Citation

Ropers, R. H. (1988). The invisible homeless: A new urban ecology. Insight Books.

Chicago Style (17th ed.) Citation

Ropers, Richard H. The Invisible Homeless: A New Urban Ecology. New York, NY: Insight Books, 1988.

MLA (8th ed.) Citation

Ropers, Richard H. The Invisible Homeless: A New Urban Ecology. Insight Books, 1988.