1.
National Geographic: As We Begin Our Second Century, the Geographic Asks: Can Man Save This Fragile Earth? (Vol. 174, No. 6, December 1988, Special Limited Collector's Edition with Holographic Covers)Author name:
Bart McDowell,
John J. Putman,
Thomas J. Abercrombie,
Harvey Arden,
David S. Boyer,
Mike Edwards,
Noel Grove,
Bryan Hodgson,
Michael E. Long,
Priit J. Vesilind1988
5.
The National Geographic Magazine, August, 1949 (Volume XCVI (96), Number Two (2))Author name:
National Geographic Society,
Victor R. Boswell,
Else Bostelmann,
Andrew H. Brown,
Robert F. Sisson,
Albert W. Atwood,
Charles J. Fox,
Lawrence L. Klingman,
B. Anthony Stewart1949