Knowles, G. E. (1981). How to help your church grow. Review and Herald.
Citazione stile Chigago Style (17a edizione)Knowles, George E. How to Help Your Church Grow. Review and Herald, 1981.
Citatione MLA (9a ed.)Knowles, George E. How to Help Your Church Grow. Review and Herald, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.