Gareis, R. &. O. (2013). Project management and sustanable development principles. Project management institute.
Chicago-referens (17:e uppl.)Gareis, Ronald & Other. Project Management and Sustanable Development Principles. Pennsylvania: Project management institute, 2013.
MLA-referens (9:e uppl.)Gareis, Ronald & Other. Project Management and Sustanable Development Principles. Project management institute, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.