Gaya APA

Englund, R, L., Alfonso, B. (2006). Project sponsorship: acheiving management commitment for project success . San Francisco, USA: Jossey-bass.

Gaya MLA

Englund, Randall, L., Alfonso, Bucero. "Project sponsorship: acheiving management commitment for project success". San Francisco, USA: Jossey-bass, 2006. Book.