Ministry for the Environment 2019, Evidence for climate change, viewed 24 September 2019, https://www.mfe.govt.nz/climate-change/why-climate-change-matters/evidence-climate-change
Milman, O. 2019, 'Greta Thunberg condemns world leaders in emotional speech at UN', The Guardian, viewed 24 September 2019, https://www.theguardian.com/environment/2019/sep/23/greta-thunberg-speech-un-2019-address
Ministry for the Environment 2019, New Zealand's environmental reporting series: our marine environment 2019, viewed 18 October 2019, https://www.mfe.govt.nz/sites/default/files/media/Environmental%20reporting/our-marine-environment-2019.pdf
Mpofu, C. 2019, 'Defining ethics and morals' [PowerPoint], HEAL504 Lifespan Development and Communication, retrieved from https://canvas.aut.ac.nz
You don’t need to reference notes that you took in class. Instead, try to find and reference academic sources that support what is written in your notes.