Cita APA (7th ed.)

Ostrander, G. M. (1970). American civilization in the first machine age: 1890-1940. Harper & Row.

Cita Chicago (17th ed.)

Ostrander, Gilman Marston. American Civilization in the First Machine Age: 1890-1940. New York: Harper & Row, 1970.

Cita MLA (9th ed.)

Ostrander, Gilman Marston. American Civilization in the First Machine Age: 1890-1940. Harper & Row, 1970.