struch, r. (2018). a simple method for short-term fore costing. the institute of national planning.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումstruch, richard. A Simple Method for Short-term Fore Costing. the institute of national planning, 2018.
MLA (9րդ խմբ.) Մեջբերումstruch, richard. A Simple Method for Short-term Fore Costing. the institute of national planning, 2018.