Cita APA (7a ed.)
Worldwide Engineering Services Industry Report. C. Barnes & Co.
Cita Chicago Style (17a ed.)
Worldwide Engineering Services Industry Report. C. Barnes & Co.
Cita MLA (9a ed.)
Worldwide Engineering Services Industry Report. C. Barnes & Co.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.