Citazione Stile APA (7a Edizione)

Soumelis, C. G. (1977). Project evaluation methodologies and techniques. Unesco.

Citazione stile Chigago Style (17a edizione)

Soumelis, Constantin G. Project Evaluation Methodologies and Techniques. Paris: Unesco, 1977.

Citatione MLA (9a ed.)

Soumelis, Constantin G. Project Evaluation Methodologies and Techniques. Unesco, 1977.