Gaya APA
Gralewska, A.
(1969).
Kwic Indek of Rock Mechanics Literature Publ. before 1969 Vol 2.
.
London:
Pergamon Press.
Gaya MLA
Gralewska, A..
"Kwic Indek of Rock Mechanics Literature Publ. before 1969 Vol 2.".
London:
Pergamon Press,
1969.
Text.