Compton, pp. 146-151.

Sickels, p. 134.

Wheeler, pp. 366-372.

Framed Structures.

Crawshaw.

Wheeler, pp. 203-206, 238-297.

Sickels, p. 124.

Building Trades Pocketbook, pp. 221, 230.

Coverings.

Sickels, pp. 128-131.