Plummer, H. C. (1962). Brick and tile engineering. Washington, D.C: Structural Clay Products Institute.
Παραπομπή Chicago StylePlummer, Harry C. Brick and Tile Engineering. Washington, D.C: Structural Clay Products Institute, 1962.
Παραπομπή MLAPlummer, Harry C. Brick and Tile Engineering. Washington, D.C: Structural Clay Products Institute, 1962.
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