APA (7th ed.) Citation

(1969). Our presidents and their times: Social studies unit books series. Xerox Education.

Chicago Style (17th ed.) Citation

Our Presidents and Their Times: Social Studies Unit Books Series. Columbus, Ohio: Xerox Education, 1969.

MLA (8th ed.) Citation

Our Presidents and Their Times: Social Studies Unit Books Series. Xerox Education, 1969.

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