Richardus, P. (1974). Project surveying: General adjustment and optimization techniques with applications to engineering surveying. Amsterdam : New York: North-Holland Pub. Co. American Elsevier Pub. Co..
Παραπομπή Chicago StyleRichardus, Peter. Project Surveying: General Adjustment and Optimization Techniques With Applications to Engineering Surveying. Amsterdam : New York: North-Holland Pub. Co. American Elsevier Pub. Co., 1974.
Παραπομπή MLARichardus, Peter. Project Surveying: General Adjustment and Optimization Techniques With Applications to Engineering Surveying. Amsterdam : New York: North-Holland Pub. Co. American Elsevier Pub. Co., 1974.
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