APA Citation

Hartman, G., & Hartman, G. (1945). These United States and how they came to be. New York: Macmillan Company.

Chicago Style Citation

Hartman, Gertrude, and Gertrude Hartman. These United States and How They Came to Be. New York: Macmillan Company, 1945.

MLA Citation

Hartman, Gertrude, and Gertrude Hartman. These United States and How They Came to Be. New York: Macmillan Company, 1945.

Warning: These citations may not always be 100% accurate.