Willibald Pschyrembel 
Praktische Geburtshilfe und geburtshilfliche Operationen [PDF ebook] 

“No other obstetrics textbook on the market today – with its extensive image material – is as clear and concise in its description of the mechanics of birth and the courses of action during normal and pathological births.”
Professor Günter Köhler, MD, Department of Gynecology and Obstetrics, Ernst Moritz Arndt University of Greifswald