Gaya APA

ASTM, . (1997). ASTM D 371 - 89 Standard specification for asphalt roll roofing (organic felt) surfaced with mineral granules; wide selvage . : ASTM.

Gaya MLA

ASTM, . "ASTM D 371 - 89 Standard specification for asphalt roll roofing (organic felt) surfaced with mineral granules; wide selvage". : ASTM, 1997. Diorama.