The Institute of Criminology recommends the use of the Harvard referencing style. Further information is available in your course handbook. Library staff are happy to provide help with referencing and there are many useful guides available in the Library at classmark ZB and online (see below).
Many people use software to help them gather, store and eventually publish their references. Here's a Referencing Management Libguide, organised by subject. Cite Them Right is a referencing guide and resource covering a number of different styles. Examples of software packages used in Cambridge include:
Zotero (Zotero Libguide)
Mendeley (Mendeley Libguide)
Guides to Harvard referencing