Perreault, Jean M., 1931-2001.
An introduction to U.D.C. / by Jean M. Perreault. - London : Clive Bingley, 1969. - 111 p. : 22 cm. - Programmed texts in library and information science .
Includes index.
0851570860
70454654
B69-27485
Classification, Universal decimal--Programmed instruction.
025.4 / PEI
An introduction to U.D.C. / by Jean M. Perreault. - London : Clive Bingley, 1969. - 111 p. : 22 cm. - Programmed texts in library and information science .
Includes index.
0851570860
70454654
B69-27485
Classification, Universal decimal--Programmed instruction.
025.4 / PEI