APA

Ayrest L., .A Clinical guide to the menopause and the postmenopause. New York: Ayrest.

Chicago

Ayrest Laboratories, .A Clinical guide to the menopause and the postmenopause. New York: Ayrest.

Harvard

Ayrest L., .A Clinical guide to the menopause and the postmenopause. New York: Ayrest.

MLA

Ayrest Laboratories, .New York: Ayrest. .