Παραπομπή APA

Fialovszky, L. (1991). Surveying instruments and their operational principles. Elsevier.

Παραπομπή Chicago Style

Fialovszky, Lajos. Surveying Instruments and Their Operational Principles. Amsterdam: Elsevier, 1991.

Παραπομπή MLA

Fialovszky, Lajos. Surveying Instruments and Their Operational Principles. Elsevier, 1991.