Gaya APA

P.Ralston, P, W, P, W., P.Ralston, P, W. (2012). Biochemistry : the fast way to Top Grades . : Mc Graw Hill.

Gaya MLA

P.Ralston, Philip, W.Kuchel;Gregory, P.RalstonPhilip, W.Kuchel;Gregory., P.Ralston, Philip, W.Kuchel;Gregory. "Biochemistry : the fast way to Top Grades". : Mc Graw Hill, 2012. Text.