Gaya APA

Cleland, D, I., Ireland, L, R. (2004). Project Manager's Portable Handbook (2). Yogyakarta: Salemba Empat.

Gaya MLA

Cleland, David, I.., Ireland, Lewis, R.. "Project Manager's Portable Handbook". 2 Yogyakarta: Salemba Empat, 2004. Text.