Cita APA (7th ed.)

Liebing, R. W. (1987). Construction regulations handbook. Wiley.

Cita Chicago (17th ed.)

Liebing, Ralph W. Construction Regulations Handbook. New York: Wiley, 1987.

Cita MLA (9th ed.)

Liebing, Ralph W. Construction Regulations Handbook. Wiley, 1987.