Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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