Gaya APA
Hakalehto, Kaarlo O.. (1973).
Energy Required to Break Rock by Percussive Drilling .
:
s.n..
Gaya Chicago
Hakalehto, Kaarlo O..
Energy Required to Break Rock by Percussive Drilling.
:
s.n.,
1973.
Computer Software.
Gaya MLA
Hakalehto, Kaarlo O..
Energy Required to Break Rock by Percussive Drilling.
:
s.n.,
1973.
Computer Software.
Gaya Turabian
Hakalehto, Kaarlo O..
Energy Required to Break Rock by Percussive Drilling.
:
s.n.,
1973.
Computer Software.