Watts, D. E. (1995). Friends for keeps. Review and Herald.
Citazione stile Chigago Style (17a edizione)Watts, Dorothy Eaton. Friends for Keeps. Hagerstown, MD: Review and Herald, 1995.
Citatione MLA (9a ed.)Watts, Dorothy Eaton. Friends for Keeps. Review and Herald, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.