Gaya APA

Year book of endocrinology 1990. (1990). : .

Gaya Chicago

Year book of endocrinology 1990. . : , 1990. Text.

Gaya MLA

Year book of endocrinology 1990. . : , 1990. Text.

Gaya Turabian

Year book of endocrinology 1990. : , 1990. Print.