Home › Authors › Roger P. Johnson 👤 Roger P. Johnson 3 books Books by Roger P. Johnson Designers' Guide to En 1994-1- Designers' Guide to En 1994-1-1 : 2026 : Eurocode 4 : Design of Composite Steel and Concrete Structures : Part 1. 1 2025 Composite Structures of Steel and Concrete 1975 Determination of weight, volum Determination of weight, volume and cost for tankers and dry cargo ships 1968