TY  - BOOK
AU  - Hedstrom, Richard O.
AU  - Litvin; Albert, coaut., Hanson, J. A., coaut.
TI  - Influence of mortar and block properties on shrinkage crack-ing of masonry walls / by Richard O. Hedstrom, Albert Litvi-n and J. A. Hanson
CY  - Skokie, Illinois. : atories, Development Department
ER  -