Gaya APA

Officials, A, A, O, S, H, A, T. (1990). Guidelines and Guide Specifications for Using Pozzolanic Stabilized Mixture (Base Course or Subbase) and Fly ash For in-Place Subgrade Soil Modification . America: AASHTO.

Gaya MLA

Officials, American, Assosiation, Of, State, Highway, And, Transfortation. "Guidelines and Guide Specifications for Using Pozzolanic Stabilized Mixture (Base Course or Subbase) and Fly ash For in-Place Subgrade Soil Modification". America: AASHTO, 1990. Text.