Reeves, Amy. "Biogen's MS Drug Sales Light, Alzheimer's Data Pushed Back." Investor's Business Daily 27 Apr. 2015: A1. Print.

This is an example of a bibliographic reference made by the APA format.

Explanation:

The bibliographic reference is a very important element of academic work because it allows the author to show the works of other authors that were used as a research source. The standard format for presenting bibliographic references is called APA format. This format states that the reference must be made with the following information: Author's last name + author's name + book title + publisher name + publication date.

An example of this format was shown in the question above.

im not sure about this one