National Geographic Society

Das Haus am Fjord

Fischer Wolfgang F.

Hunting Wild Life with Camera and Flashlight Vol. 2. Wild Life of Coasts, Islands and Mountains.

National Geographic, Vol. 166, Nr. 2, August 1984: Mexico City - an alarming giant, The World's urban explosion, Colorado dreaming, The Wahles called "killer", Where God's dwelled - The Japan Alps, The preposterous puffer

National Geographic Magazine

National Geographic September 1978 Solo to the north pol, The joy of pigs, etc.

National Geographic Vol 184, Nr. 4 October 1993 Labrador, The living Tower of London, the amercan prairie, etc.

National Geographic, Vol, 168, Nr. 4, October 1985: Arabia's Frankincense trail, In Bounty's wake: Finding the wreck of H.M.S. Pandora; Two Samoas, still coming of age; Usumacinta river - troubles on a border; The triumphant trumpeter swan

National Geographic Magazine

Natinonal Geographic August 1975 The Niger, the treasure of Porto Santo, etc.

National Geographic June 1981 Somalia's hour of need, Two years teaching in China, etc.

Das neue Bild der Tierwelt : Verhaltensforscher berichten.

Sowjetunion, Ein Buch der National Geographic Society

Margaret (Ed.) Sedeen

National Geographic Society