TY  - SER
TI  - National Geographic 
SN  - 1044-6613
U1  - 910.5 
PY  - 1959///
CY  - Washington, D.C.
PB  - National Geographic Society
N1  - "Official journal of the National Geographic Society."; Latest issue: Volume 2, number 9 (April, 2015)
ER  -