Basic reference sources : a self-study manual / Margaret T. Taylor and Ronald R. Powell. Taylor, Margaret, 1930- Powell, Ronald R. Reference books Bibliography Problems, exercises, etc. Reference services (Libraries) Problems, exercises, etc. Z1035.1 .T35 1990 028.7 TAB Includes index. Metuchen, N.J. : Scarecrow Press, 1990. 1990. 1990 Text xvi, 319 p. ; eng