Gaya APA

Melmed,Shlomo, . et al (2016). Williams textbook of endocrinology /13th edition (13). Canada: Elsevier Saunders.

Gaya MLA

Melmed,Shlomo, . et al. "Williams textbook of endocrinology /13th edition". 13 Canada: Elsevier Saunders, 2016. Text.