WHP WHITEHEAD, A. (1964). Planning, estimating and retefixing; for. Pitman.
Cita Chicago (17th ed.)WHP WHITEHEAD, A.C. Planning, Estimating and Retefixing; for. London: Pitman, 1964.
Cita MLA (9th ed.)WHP WHITEHEAD, A.C. Planning, Estimating and Retefixing; for. Pitman, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.