WILLIAMS R.A, . (1999). THE ATHLETE & HEART DISEASE. NEW YORK: WILLIAMS AND WILKINS A WAVERLY COMPANY MAYFIELD PUBLISHING COMPANY.
WILLIAMS R.A, . 1999. THE ATHLETE & HEART DISEASE. NEW YORK: WILLIAMS AND WILKINS A WAVERLY COMPANY MAYFIELD PUBLISHING COMPANY.
WILLIAMS R.A, . THE ATHLETE & HEART DISEASE. NEW YORK: WILLIAMS AND WILKINS A WAVERLY COMPANY MAYFIELD PUBLISHING COMPANY. 1999.
