Citação norma APA

Redfern, R., & Hincks, G. (1980). Corridors of time: A spectacular view of 1,700,000,000 years of earth's history as exposed in the Grand Canyon. Orbis.

Citação norma Chicago

Redfern, Ron, and Gary Hincks. Corridors of Time: A Spectacular View of 1,700,000,000 Years of Earth's History as Exposed in the Grand Canyon. London: Orbis, 1980.

Citação norma MLA

Redfern, Ron, and Gary Hincks. Corridors of Time: A Spectacular View of 1,700,000,000 Years of Earth's History as Exposed in the Grand Canyon. Orbis, 1980.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.