APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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