APA

The American peoples encyclopedia, . (1955). 5000 years of history: excerpts from the new 64-page section of full color historical maps appearing in the American peoples encyclopedia. Chicago: Spencer Press, Inc.

Chicago

The American peoples encyclopedia, . 1955. 5000 years of history: excerpts from the new 64-page section of full color historical maps appearing in the American peoples encyclopedia. Chicago: Spencer Press, Inc.

Harvard

The American peoples encyclopedia, . (1955). 5000 years of history: excerpts from the new 64-page section of full color historical maps appearing in the American peoples encyclopedia. Chicago: Spencer Press, Inc.

MLA

The American peoples encyclopedia, . 5000 years of history: excerpts from the new 64-page section of full color historical maps appearing in the American peoples encyclopedia. Chicago: Spencer Press, Inc. 1955.