Day Richard & Clark, H. (1974). The home owner handbook of concrete and masonry. Bounty Books.
Dyfyniad Arddull ChicagoDay Richard and Henry Clark. The Home Owner Handbook of Concrete and Masonry. New York: Bounty Books, 1974.
Dyfyniad MLADay Richard and Henry Clark. The Home Owner Handbook of Concrete and Masonry. Bounty Books, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.