Christian, J. (1981). Management, Machines and Methods in Civil Engineering. John Wiley.
استشهاد بنمط شيكاغوChristian, John. Management, Machines and Methods in Civil Engineering. New York: John Wiley, 1981.
MLA استشهادChristian, John. Management, Machines and Methods in Civil Engineering. John Wiley, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.