The list of references is placed last, before possible appendices. The heading is REFERENCES written in capital letters. All the sources of information that have been used in the text are listed here, also all sources for quoted figures and tables must be listed. In-text references are included in the chapters every time when some text written by someone else is used, and based on the information in the in-text references, the reader must be able to find the used materials in the list of references.
There is more information on in-text referencing in chapter 6 and on how to compile a list of references with examples in chapter 7.