Gather your information. You need the last names and first initials of all the authors, the date of publication for the work, the title of the work and the work's publisher. If the work is a book, you also need the publishing location. If it is an article from a periodical, you need the volume number and the page numbers from the periodical as well.
Cite a book with more than seven authors by listing the authors, the year of publication, the book's title (in italics), the publishing location and the publisher. For example: Chesney, K., Potter, G., Clarkson, K., Lovato, D., Cyrus, M., Wesley, P., Dobrev, N., ... Forbes, C. (1998). Inside Hollywood. Los Angeles, CA: Hollywood Publishing House.
Cite a periodical article with more than seven authors by listing the authors, publication year, article title, periodical title (in italics), volume number and page numbers. For example: Adams, R., Davis, A., Rules, M., Charles, E., Smith, I., Walker, B., Jones, F., ... Matthews, L. (2003). Study of APA citations styles. Journal of Citation Styles, 43, 102-104.