1. 01. English Non Fiction Polar regions / by Gritzner, Charles F. Publication: New York : Chelsea House, 2006 . 126 p. : 25 cm. Date:2006 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction The United States of America / by Gritzner, Charles F. Publication: New York : Chelsea House, 2008 . 142 p. : 24 cm. Date:2008 Availability: Copies available: (1), Actions: