TY  - BOOK
AU  - Slobodchikoff,C.N.
TI  - Concepts of species
SN  - 0879332247
PY  - 1976///
CY  - Hutchinson & Ross, Stroudsburg, Pa.
PB  - Dowden
KW  - Species
N1  - Includes indexes; Bibliography : p. 347-355
ER  -