Gaya APA

ASTM, . (1997). ASTM D 2434 - 68 (reapproved 1994) ; ASTM D 2434 - 68 (Reapproved 2000) Standard test method for permeability of granular soils (constant head) . : ASTM.

Gaya MLA

ASTM, . "ASTM D 2434 - 68 (reapproved 1994) ; ASTM D 2434 - 68 (Reapproved 2000) Standard test method for permeability of granular soils (constant head)". : ASTM, 1997. Diorama.