TY  - BOOK
AU  - Bury,R.Bruce
TI  - North American tortoises: conservation and ecology 
T2  - Wildilfe Research Report
U1  - 597.924 23
PY  - 1982///
CY  - Washingto, D.C.
PB  - U.S. Fish and Wildlife Service
KW  - Conservation
KW  - Ecology
KW  - Biblioteca Nacional de EspaÃ±a
KW  - EcologÃ­a
KW  - ConservaciÃ³n
KW  - Tortoises
KW  - Tortugas
KW  - AmÃ©rica del Norte
N1  - Incluye bibliografÃ­a (pp. 124-126)
ER  -