Cita APA (7a ed.)

PEURIFOY, R. L., & LEDBETTER, W. B. (1985). Construction planning, equipment and methods.-- Ed.4. McGraw-Hill.

Cita Chicago Style (17a ed.)

PEURIFOY, Robert L., y Wiliiam B. LEDBETTER. Construction Planning, Equipment and Methods.-- Ed.4. New York: McGraw-Hill, 1985.

Cita MLA (9a ed.)

PEURIFOY, Robert L., y Wiliiam B. LEDBETTER. Construction Planning, Equipment and Methods.-- Ed.4. McGraw-Hill, 1985.