Cita APA (7th ed.)

Liebing, R. W. (1998). Construction contract administration. Prentice Hall.

Cita Chicago (17th ed.)

Liebing, Ralph W. Construction Contract Administration. Upper Saddle River, N.J: Prentice Hall, 1998.

Cita MLA (9th ed.)

Liebing, Ralph W. Construction Contract Administration. Prentice Hall, 1998.