Das Erdöl, seine Physik, Chemie, Geologie, Technologie und sein Wirtschaftsbetrieb ...

General Register zu Band I-VI, bearb. von Dr. J. Tausz: v. 6, p. 575-802.

Der petroleumhandel,

Pub. also as the author's inaugural dissertation, Leipzig, 1902.

An analysis of cost factors of 1974 coal prices /

"June 15, 1975."

Research safety vehicle program (phase II) : producibility studies /

Mode of access: Internet.