TY  - BOOK
AU  - Peter H. A. Sneath
AU  -  Robert  R. Sokal, 
TI  - Numerical taxonomy : The principles and practice of numerical classification
SN  - 0-7167-0697-0
U1  - 582 
PY  - 1973///
CY  - Sanfancisco
PB  - W H Freeman & Co
N1  - Peter H. A. Sneath & Robert  R. Sokal: Numerical taxonomy : The principles and practice of numerical classification.  Sanfancisco.  W H Freeman & Co, 1973. 0-7167-0697-0--(582SNE)
ER  -