J. Douglas Wilson & S. O. Werner.
Simplified roof framing., 2nd ed.
R615690. Simplified roof framing. By J. Douglas Wilson & S. O. Werner. 2nd ed. © 9Feb48; A21041. J. Douglas Wilson (A) & Sophie H. Werner (W); 9Oct75; R615690.
J. Douglas Wilson|A||Sophie H. Werner|W