Q. How to construct a reference
While there are thousands of different referencing systems, the 'blocks' to construct references are simple and apply to all systems. A Bibliography lists all these references together to show what resources you have used.
Type - is it a book? a journal, a website? legislation? etc. Once you have decided what you wish to reference, follow the instructions:
Who created it?
When was it published?
What is it called?
How can it be found?