APA (7th ed.) Citation

Watson, E. B. (1976). New York then and now: 83 Manhattan sites photographed in the past and in the present. Dover Publications.

Chicago Style (17th ed.) Citation

Watson, Edward B. New York Then and Now: 83 Manhattan Sites Photographed in the Past and in the Present. New York: Dover Publications, 1976.

MLA (9th ed.) Citation

Watson, Edward B. New York Then and Now: 83 Manhattan Sites Photographed in the Past and in the Present. Dover Publications, 1976.