Gaya APA

Gu, Y. Z.. (1981). Some Aspects of Sand-Drained Ground . : A.A. Balkema.

Gaya Chicago

Gu, Y. Z.. Some Aspects of Sand-Drained Ground. : A.A. Balkema, 1981. Computer Software.

Gaya MLA

Gu, Y. Z.. Some Aspects of Sand-Drained Ground. : A.A. Balkema, 1981. Computer Software.

Gaya Turabian

Gu, Y. Z.. Some Aspects of Sand-Drained Ground. : A.A. Balkema, 1981. Computer Software.