TY  - BOOK
AU  - Clifford,H.T.
AU  - Stephenson,William
TI  - An Introduction to numerical classification
SN  - 0121767507
PY  - 1975///
CY  - New York
PB  - Academic Press
KW  - Numerical taxonomy
N1  - Includes index; Bibliography : p. 209-224
ER  -