How do I apply this reference technique?

There are different ways of referencing:

	Paraphrasing (writing the ideas in your own words)
	Harvard Style		Anderson (1987:73-74) advances three arguments against the death penalty. He contends that the death penalty is inhuman and no society that purports to be civilised can condone it. It has never been proved that the death penalty acts as a deterrent, and, furthermore, many innocent people have died in vain for the crimes committed by others....
	APA Style		Anderson (1987, p.73-74) advances three arguments...
	Notes		Harvard: The sentence starts with the surname of the author followed by the date and page reference in round brackets. APA: Note the punctuation is different: the date is followed by a comma and the pages are preceded by p. (p full stop no space 73.)

OR

	Quoting (writing the exact words of the author)
	Harvard Style		"My arguments against the death penalty are three-fold. To do away with any human being is uncivilised and inhuman. There is no proof that the death penalty acts as a deterrent to heinous criminal acts... and it's a documented fact that many innocent men and women have been wrongly sentenced for the crimes of others" (Anderson, 1987:73-74)
	APA Style		"My arguments...crimes of others" (Anderson, 1987, p.73-74)
	Notes		the ellipsis (...), indicates that you have omitted certain words in the original. The information copied from the original author is given in quotation marks ("...") The sentence ends with the surname of the author, the date of the publication and the page references in round brackets. APA style is different: the date is followed by a comma and the pages are preceded by p. (p full stop space 73.)

	Two alternative ways of quoting in Harvard:
	Harvard		Anderson (1987:74) states: "The death penalty is no deterrent to crime."
	OR
	Harvard		Anderson (1987:74) concludes that "the death penalty is no deterrent to crime".
	... and two alternative ways of quoting in APA:
	APA		Anderson (1987, p.74) states: "The death penalty is no deterrent to crime."
	OR
	APA		Anderson (1987, p.74) concludes that "the death penalty is no deterrent to crime".

The above examples are from a book with a single author. Examples of other types of sources are given in the sections "Compiling the bibliography" (APA Bibliography | Harvard Bibliography | Chicago Bibliography | Vancouver Bibliography).