Gaya APA

Peurifoy, R, L., Ledbetter, W, B. (1985). Construction Planning, Equipment & Methods (Ed. 4). Singapore: McGraw-hill Book Company.

Gaya MLA

Peurifoy, Robert, L.., Ledbetter, William, B.. "Construction Planning, Equipment & Methods". Ed. 4 Singapore: McGraw-hill Book Company, 1985. Buku.