There is no prescribed referencing style used across the various language subjects. APA (American Psychological Association) is a common referencing style that may be used. The most recent version is APA 7th edition, published in 2019.
Try the citation button in Te Waharoa Find your source in the Te Waharoa library search. Select the quotation mark icon and then choose your referencing style. Check the citation details are accurate, then copy the formatted reference.