Batty, C. D.
An introduction to Colon Classification / C. D. Batty. - London : Bingley, 1966. - ix, 90 p. ; 23 cm.
Programmed text.
Colon classification.
Classification--Books.
025.4 / BAI
An introduction to Colon Classification / C. D. Batty. - London : Bingley, 1966. - ix, 90 p. ; 23 cm.
Programmed text.
Colon classification.
Classification--Books.
025.4 / BAI