In the text
Surname(s) (year) state that...
"Quotation" (Surname(s), Year, Page)
Rees and Smith (2014) state that...
"Doctors realized that pharmacists had many possible additional clinical roles in primary care, beyond their traditional community pharmacy premises" (Rees and Smith, 2014, p.12)
In your bibliography
Surname, Initials. (Publication year in round brackets) Book title - italics. [Online - if ebook] . Edition - unless first. Place of publication: Publisher.Series and volume number if applicable.
Surname, Initials. Surname, Initials. and Surname, Initials.
Four plus authors
Surname, Initials. et al.
For books which are edited give the editor(s) surname(s) and initials, followed by (ed) or (eds).
Rees, J. A. and Smith, I. (eds) (2014) Pharmaceutical Practice. 5th edn. Edinburgh: Churchill Livingstone Elsevier