Cita APA

Roberts, J. (1983). Pelican history of the world. Penguim Books.

Citación estilo Chicago

Roberts, Jm. Pelican History of the World. England: Penguim Books, 1983.

Cita MLA

Roberts, Jm. Pelican History of the World. Penguim Books, 1983.

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