Ong, D. L. M. (1991). Project management in Singapore: Why, what, who.
Chicago Style (17th ed.) CitationOng, David Loke Min. Project Management in Singapore: Why, What, Who. 1991.
MLA引文Ong, David Loke Min. Project Management in Singapore: Why, What, Who. 1991.
警告:這些引文格式不一定是100%准確.