"corrigan, philip r. "
an introduction to sears list of subject headings: / Philip R. D. Corrigan - 1 ed. - uk : clive bingley 1967. - "vii, 94p.; 22 cm." - A Programmed text in library and information science. .
85157002x
--Subject headings -- Programmed instruction.--Sears, Minnie Earl, 1873-1933. Sears list of subject-- headings
Z695.S432 / C67 1967
an introduction to sears list of subject headings: / Philip R. D. Corrigan - 1 ed. - uk : clive bingley 1967. - "vii, 94p.; 22 cm." - A Programmed text in library and information science. .
85157002x
--Subject headings -- Programmed instruction.--Sears, Minnie Earl, 1873-1933. Sears list of subject-- headings
Z695.S432 / C67 1967