By Stuart, Gene S..
Washington, D.C. : National Geographic Society, 1990 .
32, [1] p. : 29 cm..
0870448218 : | 9780870448218 | 0870448269 (lib. bdg.) : | 9780870448263 (lib. bdg.)

Place hold on Our amazing animal friends /

By Stuart, Gene S..
Washington, D.C. : National Geographic Society, 1990 .
32, [2] p. : 29 cm..
0870448196 : | 9780870448195 | 0870448242 (lib. bdg.) : | 9780870448249 (lib. bdg.)

Place hold on Animal families /

By Kupferschmid, Gene S..
Lexington, Mass. : D.C. Heath and Co., 1992 .
xvii, 244 p. : , Text in Spanish with preface in English. 23 cm..
0669204919 | 9780669204919

Place hold on Y tú, qué dices? /

By Stuart, Gene S..
[Washington] : National Geographic Society, 1979 .
104 p., : , In pocket: Far out fun booklet (23 p.). | Includes index. 28 cm..
087044316X : | 9780870443169

Place hold on Secrets from the past /

By Stuart.

Place hold on The Mighty Aztecs.

By Stuart, Gene S..
Washington, D.C. : National Geographic Society, 1991 .
32, [2] p. : 26 cm..
0870448463 (regular ed.) | 9780870448461 (regular ed.) | 087044851X (lib. ed.) | 9780870448515 (lib. ed.)

Place hold on Towns down underground /

By Valette, Jean Paul..
New York : Holt, Rinehart, and Winston, 1988 .
xvi, xvi, 509 p., [12] p. of plates : , Includes index. 24 cm..
0030048338 | 9780030048333 | 003004832X (student ed.) | 9780030048326 (student ed.)

Place hold on Con mucho gusto /

By Stuart, Gene S....
Washington, D.C. : National Geographic Society, 1988 .
199 str. : , Naslov na vzporedni strani. 26 cm..
0870446274 | 9780870446276

Place hold on America's ancient cities /

By Stuart, George E..
Washington : National Geographic Society, 1977 .
199 p. : , Includes index. 27 cm..
0870442333 : | 9780870442339

Place hold on The mysterious Maya /

By Stuart, George E..
[Washington, National Geographic Society, 1969 .
211 p. 27 cm..

Place hold on Discovering man's past in the Americas,