Gaya APA

Tuma, J, J., Abdel-Hady, M. (1973). Engineering Soil Mechanics . Englewood Cliffs: Prentice Hall.

Gaya MLA

Tuma, Jan, J.., Abdel-Hady, M.. "Engineering Soil Mechanics". Englewood Cliffs: Prentice Hall, 1973. Text.