A very helpful book for translating German is "The Key to German Translation" by C.V. Pollard, The University Cooperative Society, Inc., Austin, Texas, 8th edition, 1968. I had the book in 1968, then gave it away, and this month bought another copy over the Internet. I quote from the book's introduction: "The one basic feature that distinguishes this book from other texts dealing with German is the non-grammatical approach. This method emphasizes the logical arrangement of the words in the sentence and teaches the student how to analyze the sentence on the basis of a few simple formulae. ... This simplified approach to German translation focuses the student's attention upon certain 'key points' in the German sentence that lead him to a smooth, accurate and rapid translation."