Corrigan, Philip Richard D.
An introduction to Sears List of subject headings / Philip R. D. Corrigan. - Hamden, Conn. : Archon Books, 1967. - vii, 94 p. ; 23 cm. - A Programmed text in library and information science .
Sears, Minnie Earl, 1873-1933. Sears list of subject headings.
Subject headings--Programmed instruction.
025.33 / COI
An introduction to Sears List of subject headings / Philip R. D. Corrigan. - Hamden, Conn. : Archon Books, 1967. - vii, 94 p. ; 23 cm. - A Programmed text in library and information science .
Sears, Minnie Earl, 1873-1933. Sears list of subject headings.
Subject headings--Programmed instruction.
025.33 / COI