Singh, P., & Sharma, K. D. (1978). Stone observatories in India, erected by Maharaja Sawai Jai Singh of Jaipur, 1686-1743 A.D., at Delhi, Jaipur, Ujjain, Varanasi, Mathura. Bharata Manisha.
Chicago Style (17th ed.) CitationSingh, Prahlad, and Kalyan Dutt Sharma. Stone Observatories in India, Erected by Maharaja Sawai Jai Singh of Jaipur, 1686-1743 A.D., at Delhi, Jaipur, Ujjain, Varanasi, Mathura. Varanasi: Bharata Manisha, 1978.
MLA (8th ed.) CitationSingh, Prahlad, and Kalyan Dutt Sharma. Stone Observatories in India, Erected by Maharaja Sawai Jai Singh of Jaipur, 1686-1743 A.D., at Delhi, Jaipur, Ujjain, Varanasi, Mathura. Bharata Manisha, 1978.
Warning: These citations may not always be 100% accurate.