Cita APA (7th ed.)

Oliver, C. (1969). Our Changing World: Man, the world and the social studies. Laidlaw Brothers.

Cita Chicago (17th ed.)

Oliver, Carl. Our Changing World: Man, the World and the Social Studies. River Forest, Ill.: Laidlaw Brothers, 1969.

Cita MLA (9th ed.)

Oliver, Carl. Our Changing World: Man, the World and the Social Studies. Laidlaw Brothers, 1969.