APA: American Psychological Association [Social Sciences]
You must cite:
When in doubt, be safe and cite your source!
If there is a DOI: Ma, Xin (Cissy). (2015). Sustainable water systems for the city of tomorrow-a conceptual framework. Global Journal of Environmental Science and Management- GJESM 1 Issue 2: 159-188. doi:10.3390/su70912071
Put in author of article,year, article title, journal title, volume, pages, doi.
If there is no DOI: give the link to the online journal's homepage, e.g. Retrieved from http://www.journalhomepage.com/full/url/
Day, John W. 2016. America's most sustainable cities and regions : surviving the 21st century megatrends; with contributions by Eric Roy [and more]. New York, NY : Springer.
Put in author(s), date, title,place, publisher. The "citation" button for a book listed in Barton will format a book citation.
Duncan, G. J., & Brooks-Gunn, J. (Eds.). (1997). Consequences of growing up poor. New York, NY: Russell Sage Foundation.
O'Neil, J. M., & Egan, J. (1992). Men's and women's gender role journeys: A metaphor for healing, transition, and transformation. In B. R. Wainrib (Ed.), Gender issues across the life cycle (pp. 107-123). New York, NY: Springer.
Ma, Haibing. (2016) City View: Shanghai. In Lisa Mastny (Ed.) State of the world : can a city be sustainable? (pp. 109-114. Washington, DC: Island Press.
Put in author of chapter, date. title of chapter, the word in, the editor name, book title, pages of the chapter then place, publisher.
Online Newspaper Article
Parker-Pope, T. (2008, May 6). Psychiatry handbook linked to drug industry. The New York Times. Retrieved from http://well.blogs.nytimes.com/2008/05/06/psychiatry-handbook-linked-to-drug-industry/?_r=0
Angeli, E., Wagner, J., Lawrick, E., Moore, K., Anderson, M., Soderland, L., & Brizee, A. (9 November 2016). General format. Retrieved from http://owl.english.purdue.edu/owl/resource/560/01/