Gaya APA

A, B. et al (2008). Tietz fundamentals of clinical chemistry/Carl A.Burtis,Edward R.Ashwood,David E.Bruns (6th.Ed). St.Louis,Miss: Saunders-Elsevier.

Gaya MLA

A, Burtis,Carl. et al. "Tietz fundamentals of clinical chemistry/Carl A.Burtis,Edward R.Ashwood,David E.Bruns". 6th.Ed St.Louis,Miss: Saunders-Elsevier, 2008. Text.