APA (7th ed.) Citation

Sangra, H., & Woodman, A. (2011). A history of negative campaigning : UK and USA / by Harpreet Sangra and Andrew Woodman: UK and USA. Bretwalda Books.

Chicago Style (17th ed.) Citation

Sangra, Harpreet, and Andrew Woodman. A History of Negative Campaigning : UK and USA / by Harpreet Sangra and Andrew Woodman: UK and USA. Epsom, Surrey :: Bretwalda Books, 2011.

MLA (9th ed.) Citation

Sangra, Harpreet, and Andrew Woodman. A History of Negative Campaigning : UK and USA / by Harpreet Sangra and Andrew Woodman: UK and USA. Bretwalda Books, 2011.

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