TY  - SER
TI  - IUCN bulletin
SN  - 0020-9058
CY  - Gland
PB  - International Union for Conservation of Nature and Natural Resources.
KW  - Nature conservation
KW  - Periodicals
KW  - Conservation of natural resources
N1  - No. 1-20, Aug. 1961-July/Sept. 1966, constitute new ser. v. 1
ER  -