APA (7th ed.) Citation

Ostrander, G. M. (1971). Ideas of the progressive era. Marston Press.

Chicago Style (17th ed.) Citation

Ostrander, Gilman Marston. Ideas of the Progressive Era. Clio, Mich: Marston Press, 1971.

MLA (9th ed.) Citation

Ostrander, Gilman Marston. Ideas of the Progressive Era. Marston Press, 1971.