Dòng Nội dung
1
Exploring our world, past and present / Charles F. Gritzner.
Lexington, Mass. : D.C. Heath, 1991
xii, 659 p : col. ill., col. maps ; 26 cm.
2
Exploring regions of the Eastern Hemisphere / Ralph Sandlin Yohe, Gilbert A. Cahill, Herbert H. Gross, Charles F. Gritzner.
Sacramento : California State Series, 1973.
480p. ; 27 cm.
3
The United States of America / Charles F. Gritzner
New York : Chelsea House, 2008
142 p. : ill. ; 28cm.