Citazione Stile APA (7a Edizione)
Willis, W. R. (1979). 200 years and still counting: Past, present and future of the sunday school. Victor Books.
Citazione stile Chigago Style (17a edizione)
Willis, Wesley R. 200 Years and Still Counting: Past, Present and Future of the Sunday School. Illinois: Victor Books, 1979.
Citatione MLA (9a ed.)
Willis, Wesley R. 200 Years and Still Counting: Past, Present and Future of the Sunday School. Victor Books, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.