APA (7 ম সংস্করণ) উদ্ধৃতি

Willis, W. R. (1979). 200 years and still counting: Past, present and future of the sunday school. Victor Books.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Willis, Wesley R. 200 Years and Still Counting: Past, Present and Future of the Sunday School. Illinois: Victor Books, 1979.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Willis, Wesley R. 200 Years and Still Counting: Past, Present and Future of the Sunday School. Victor Books, 1979.