4 1 50 Leighton Ford Additional Author mixed material 0830818316 Downers Grove : InterVarsity Downers Grove : InterVarsity 1991 Putting Energy Info Your Walk With God Leighton Ford Primary Author Jerry Sittser Primary Author mixed material Illinois InterVarsity Press 1950 Leighton Ford Primary Author 傅禮敦 Primary Author 傅礼敦 Primary Author mixed material 9622440452 香港，中國 宣道 1990 Leighton Ford Additional Author mixed material 0830818316 Illionis: Intervarsity Press Illionis: Intervarsity Press 1991