You can use Bibliographic referencing software to maintain your references. This software can also create bibliographies automatically in Word.
Macquarie University has a licence for two bibliographic management software packages EndNote and Mendeley:
EndNote
Mendeley
Academic Writer- American Psychological Association
Open resource > Click Learn > Click Go to Sample References
There are 151 sample references for every source imaginable.
If you quote from a work that has been mentioned in something else you have read, but you have not read the original source, then you must make a secondary reference.
It is important to make it clear that you have not read the original work.
You should not include the original work in your bibliography. You should only include the work that you have read.