Margaret Nofziger Presented here is a safe, non-invasive, and effective method of birth control based on the recording and interpretation of signs and signals from a woman's own body. This book has been recommended by family planning centers for many years. The information in this book can also be used to help couples conceive. Margaret Nofziger is a medical writer who also wrote the bookThe Fertility Question. Illustrations Additional Information Publisher: Book Publishing Company Format: Softcover Publication Year: 1992 Page Count: 112 Height: 8.5 inches Width: 5.5 inches