APA (7th ed.) Citation

Patwant Singh & Singh, P. (1999). The Sikhs (1. publ.). John Murray.

Chicago Style (17th ed.) Citation

Patwant Singh and Patwant Singh. The Sikhs. 1. publ. London: John Murray, 1999.

MLA (8th ed.) Citation

Patwant Singh and Patwant Singh. The Sikhs. 1. publ. John Murray, 1999.

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