Classification: Class V, Naval Science (Classic Reprint)

Classification: Class Q, Science (Classic Reprint)

Classification: Class Z, Bibliography and Library Science (Classic Reprint)

Classification: Class J, Political Science (Classic Reprint)

The Development of Socialism From Science to Action (Classic Reprint)

Classification, Class A: General Works, Polygraphy (Classic Reprint)

Classification, Class N: Fine Arts (Classic Reprint)

Classification: Class E-F; America (Classic Reprint)