This style guide handout contains general APA guidance and examples of common formats. The document is one page, double sided.
The handout should not be used as a substitute for consulting with the official style guide manuals.
Below is a sample citation from the APA Style Experts on how to cite a clinical trial from clinicaltrials.gov:
Patient Centered Cloud-based Electronic System: Ambient Warning and Response Evaluation (ProCCESs AWARE). (2014). Retrieved from https://clinicaltrials.gov/ct2/show/NCT02039297?term=Patient+Centered+Cloud-based+Electronic+System%3A+Ambient+Warning+and+Response+Evaluation&draw=2&rank=1
(Identification No. NCT02039297)
It should be doulbe-spaced and use a hanging indent format (not available here).