TY - BOOK AU - Hagstrom, Robert G., CN - HG4521 CN - HG4521 CY - New York : DA - c1999. ID - 218857 KW - Investments. KW - Portfolio management. PB - Wiley, PP - New York : PY - c1999. SN - 0471247669 (alk. paper) T1 - The Warren Buffett portfolio :mastering the power of the focus investment strategy / TI - The Warren Buffett portfolio :mastering the power of the focus investment strategy / ER -