Gaya APA

Chen, , S, N. (1976). Laboratory Preparation of Specimens for Simulating Field Moisture Conditions of Partially Saturated Soils . : ASTM.

Gaya MLA

Chen, , S., N.. "Laboratory Preparation of Specimens for Simulating Field Moisture Conditions of Partially Saturated Soils". : ASTM, 1976. Computer Software.