APA (7th ed.) Citation

Roberts, J. (1976). The Penguin History Of The World. Clays Ltd,St Ives Plc.

Chicago Style (17th ed.) Citation

Roberts, J.M. The Penguin History Of The World. England: Clays Ltd,St Ives Plc, 1976.

MLA (9th ed.) Citation

Roberts, J.M. The Penguin History Of The World. Clays Ltd,St Ives Plc, 1976.

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