APA (7 ম সংস্করণ) উদ্ধৃতি

Astore, W. J. (1995). Observing God: Thomas Dick (1774-11857), evangelicalism and popular science in Victorian Britain and antebellum America. British Library Document Supply Centre.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Astore, William Joseph. Observing God: Thomas Dick (1774-11857), Evangelicalism and Popular Science in Victorian Britain and Antebellum America. Boston Spa, United Kindom: British Library Document Supply Centre, 1995.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Astore, William Joseph. Observing God: Thomas Dick (1774-11857), Evangelicalism and Popular Science in Victorian Britain and Antebellum America. British Library Document Supply Centre, 1995.