Heilfurth, Gerhard
Marburg
N.G. Elwert Verlag
1967
Farkas, Zoltán
Zalaegerszeg
Magyar Olajipari Muzeum
2002
2010
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Izsó, István
Budapest
[s.n.]
Kolozsvári, Julia
Baia Mare
1986
2010-2014
9789638787699
Bud, Ioan (ing.)
Editura Universităţii de Nord
2000
9739855644
Szinkulics, Veronica
Eurotip
2009
9789731852829
Maercks, J.
Bucureşti
Editura Tehnică
1961
Agricola, Georg
[2002]
9738133548
Mustaţă, Constantin
[Oradea]
Editura Anotimp
9738102111
Kalecsinszki Sándor
Franklin-Társulat
1901