Mikhail, E. M., & Gracie, G. (1981). Analysis and adjustment of survey measurements. New York: Van Nostrand Reinhold Co..
Παραπομπή Chicago StyleMikhail, Edward M., and Gordon Gracie. Analysis and Adjustment of Survey Measurements. New York: Van Nostrand Reinhold Co., 1981.
Παραπομπή MLAMikhail, Edward M., and Gordon Gracie. Analysis and Adjustment of Survey Measurements. New York: Van Nostrand Reinhold Co., 1981.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.