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QC389 .S65 1986 (2)
QC718.4 .B57 (2)
QH431 .V59 1986 (2)
QP519.9.H53 I58 1988 (2)
QR181 .F84 1984 (2)
RA569 .R26 1985 (2)
TA418.9.C6 H33 1982 (2)
Technique\\Oil and Gas Technologies: Pipelines (2)
TK5102.5 .D83 1984 (2)
TP156.E65 W34 1985 (2)