Format: 

Author, A. A., Author, B. B., & Author, C. C. (Year, Month). Title of article. Title of Periodical, Volume(Issue), Pages. Retrieved from URL

Examples: 

Sinclair, K. (2006, October). Automating sustainability. Engineered Systems, 23(10), 24. Retrieved from http://www.esmagazine.com

In-text: (Sinclair, 2006)

Source:
APA - 7.01, no. 7