In most cases, you can cite reports only in notes. Include them in your bibliography if they are critical to your argument or frequently cited.
If you found the report online, include an access date and URL.
58. Creative New Zealand, New Zealanders and the Arts: Attitudes, Attendance and Participation in 2014 (Wellington: Creative New Zealand, 2014), 223, accessed October 7, 2017, http://www.creativenz.govt.nz/development-and-resources/research-and-reports/new-zealanders-and-the-arts-2014.
New Zealand Digital Skills Forum. Digital Skills for a Digital Nation: An Analysis of the Digital Skills Landscape of New Zealand. Auckland: New Zealand Digital Skills Forum, 2017. Accessed February 4, 2018. https://digitalskillsforum.nz/.