Cita APA (7th ed.)

Gareis, R. &. O. (2013). Project management and sustanable development principles. Project management institute.

Cita Chicago (17th ed.)

Gareis, Ronald & Other. Project Management and Sustanable Development Principles. Pennsylvania: Project management institute, 2013.

Cita MLA (9th ed.)

Gareis, Ronald & Other. Project Management and Sustanable Development Principles. Project management institute, 2013.