Oliver, W. (2011). Families reaching up. Adventist Family Ministries.
Citazione stile Chigago Style (17a edizione)Oliver, Willie. Families Reaching Up. Lincoln, NE: Adventist Family Ministries, 2011.
Citatione MLA (9a ed.)Oliver, Willie. Families Reaching Up. Adventist Family Ministries, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.