Morrell, Jeffrey J., 1955- Wood pole maintenance manual (1996 edition) / by Jeffrey J. Morrell. -- Corvallis : Oregon State University, 1996. -- 47 s. : 36 obr., 1 tab., príl. ; 28 cm. -- (Research Contribution ; 15). -- (brož.) : 250.00 Sk

630*812+630*84+630*844/*845
ZV001