APA (7th ed.) Citation

Perkinson, K. (1996). Helping your child learn geography: With activities for children from 5 to 10 years of age. U.S. Dept. of Education, Office of Educational Research and Improvement in cooperation with U.S. Dept. of the Interior, U.S. Geological Survey & National Geographic Society.

Chicago Style (17th ed.) Citation

Perkinson, Kathryn. Helping Your Child Learn Geography: With Activities for Children from 5 to 10 Years of Age. [Washington, D.C.?]: U.S. Dept. of Education, Office of Educational Research and Improvement in cooperation with U.S. Dept. of the Interior, U.S. Geological Survey & National Geographic Society, 1996.

MLA (9th ed.) Citation

Perkinson, Kathryn. Helping Your Child Learn Geography: With Activities for Children from 5 to 10 Years of Age. U.S. Dept. of Education, Office of Educational Research and Improvement in cooperation with U.S. Dept. of the Interior, U.S. Geological Survey & National Geographic Society, 1996.