"goss, ralph . "
roofing ready reckoner for timber roofs of any span and pitc: h/ ralph.. goss - 2 ed. - uk : bsp 1973. - ", 89p.; 12 cm."
0-632-02196-9
roofing ready reckoner for timber roofs of any span and pitc: h/ ralph.. goss - 2 ed. - uk : bsp 1973. - ", 89p.; 12 cm."
0-632-02196-9