Gaya APA

Peurifoy, R, L., Ledbetter, W, B. (1985). Constrution Planning, Equipment & Methods (4). New York: McGraw - Hill.

Gaya MLA

Peurifoy, Robert, L.., Ledbetter, William, B.. "Constrution Planning, Equipment & Methods". 4 New York: McGraw - Hill, 1985. Text.