Find Parametric Equations for the Sphere $( x - 6 ) ^ { 2 } + ( y + 6 ) ^ { 2 } + ( z - 12 ) ^ { 2 } = 36$

Find parametric equations for the sphere $( x - 6 ) ^ { 2 } + ( y + 6 ) ^ { 2 } + ( z - 12 ) ^ { 2 } = 36$